R |
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noun- The eighteenth letter of the Appendix:Roman script, English alphabet, preceded by Q and followed by S.
abbreviation-
(context, US politics) Republican
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(film certification) restricted
- reverse
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right (as opposed to left)
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(context, handbells) ring
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(context, baseball, cricket) The statistic reporting the number of runs scored by a player
- Thursday
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r. |
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abbreviation
- rare
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rad |
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noun
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(metrology) A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.
adjective
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(slang) excellent, short for radical
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radial |
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noun
- a radial tire / radial tyre
adjective
- arranged like rays that radiate from, or converge to a common centre
- moving along a radius
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(anatomy) of, or relating to the radius bone
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radian |
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noun
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(geometry) In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad
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radical axis |
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noun-
(mathematics) a radical line
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radicand |
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noun
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(mathematics) The number or expression whose square root or other root is being considered; e.g. The 3 in <math>\sqrtn{3}</math>
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radii |
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noun
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(plural of, radius)
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radiosymmetrical |
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adjective
- having radial symmetry
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radius |
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noun (radii, pl2=radiuses)
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(anatomy) The long bone in the forearm, on the side of the thumb.
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(geometry) A line segment between any point on the circumference of a circle and its center/centre.
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(geometry) The length of this line segment.
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radix |
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noun
- A primitive word, from which spring other words.
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range |
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noun
- Line or series of mountains.
- Large fuel-burning stove.
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Selection, array. Eg: A range of cars.
- Area used for shooting, artillery, etc.
- An area of open, often unfenced, grazing land.
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(mathematics) The set of values (points) which a function can obtain.
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(statistics) The length of the smallest interval which contains all the data. It is calculated by subtracting the smallest observations from the greatest.
- The distance to a target, or to the subject of discussion.
We could see the ship at a range of five miles.
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(sports) (baseball) The defensive area that a player can cover.
Jones has good for a big man.
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(music) Compass - The scale of all the tones a voice or an instrument can produce.
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(ecology) The geographical area or zone where a species is normally naturally found.
verb (ranges, ranging, ranged)
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(intransitive) (followed by over) To travel over (an area, etc) with a particular purpose.
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(intransitive) (mathematics, computing; followed by over) Of a variable, to be able to take any of the values in a specified range.
The variable x ranges over all real values from 0 to 10.
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(transitive) classify
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ratio |
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noun
- A number representing a comparison between two things.
- A judicial decision.
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rational function |
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noun-
(mathematics) Any function whose value can be expressed as the quotient of two polynomials (except division by zero)
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rationalize |
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verb (rationaliz, ing)
- to make something rational
- to justify an immoral act, or illogical behaviour
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(mathematics) to remove radicals , without changing the value of an expression or the roots of an equation
- to structure something along modern, efficient and systematic lines, or according to scientific principles
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rational number |
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noun
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(mathematics) A real number that can be expressed as a ratio of two integers.
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real |
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noun
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A commodity; see reality.
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(grammar) One of the three genders that the common gender can be separated into in the Scandinavian languages.
adjective (er, more)
- That can be characterized as a confirmation of truth.
- That has physical existence.
No one has ever seen a real unicorn because they don't exist.
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(economics) Having been adjusted to remove the effects of inflation; contrasted with nominal.
real consumption
real GNP
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(economics) Relating to the result of the actions of rational agents; relating to neoclassical economic models as opposed to Keynesian models.
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(mathematics) Relating to numbers with a one-to-one correspondence to the points on a line.
- Relating to immovable tangible property.
real estate
real property
- That is an exemplary or pungent instance of a class or type.
a real problem
a real hero
- Genuine, not faked.
real tears
- Genuine, not artificial.
real leather
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(slang) Signifying meritorious qualities or actions especially in regards to enjoying life, prowess at sports and success wooing potential partners.
keeping it real
adverb
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(colloquial) really.
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real axis |
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noun-
(mathematics) The horizontal line in the complex plane, every point on which corresponds to a real number
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real number |
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noun (pluralreal numbers)
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(mathematics) An element of the real numbers; real numbers include the rational numbers and the irrational numbers, but not the imaginary numbers or complex numbers
Every integer is a real number, but not vice versa.
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(computing) A floating-point number.
Even if you pass sqrt an integer, it returns a real number.
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real part |
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noun (pluralreal parts)
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(complex) Of a complex number a + bi, the value a.
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reciprocal |
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noun
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(arithmetic) Of a number, the number obtained by dividing 1 by the given number; the result of exchange, exchanging the numerator and the denominator of a fraction.
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0.5 is the reciprocal of 2.
adjective (notcomp)
- Of an action, feeling, etc, done, felt, etc, by each of two people to, on or towards the other.
- In the contrary or opposite way, order, or direction
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rectangle |
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noun (pluralrectangles)
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(geometry) A quadrilateral having opposing sides parallel and four right angles.
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rectangular |
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adjective
- Having a shape like a rectangle.
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rectangular coordinates |
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nounplural
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(mathematics) A less common term for Cartesian coordinates.
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rectify |
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verb (rectif, i, ed)
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(transitive) To correct or amend something.
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(transitive, chemistry) To purify or refine, especially by distillation.
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(transitive, electronics) To convert alternating current into direct current.
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(transitive) To add water to alcoholic spirit to adjust its proof.
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reduced |
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verb
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(past of, reduce)
adjective
- Made smaller or less.
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prices
- In cookery, of a sauce, etc., made more concentrated.
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chicken served with a red wine sauce.
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refinement |
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noun
- The act, or the result of refining; the removal of impurities, or a purified material
- high, High-class style; cultivation.
- A fine or subtle distinction.
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reflex angle |
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noun (pluralreflex angles)
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(geometry) An angle greater than 180 degrees but less than 360 degrees.
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relaxation |
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noun
- The act of relaxing or the state of being relaxed; the opposite of stress or tension; the aim of recreation and leisure activities.
- A diminution of tone, tension, or firmness; specifically in pathology: a looseness; a diminution of the natural and healthy tone of parts.
relaxation of the soft palate
- remission, Remission or abatement of rigor.
- Remission of attention or application.
relaxation of efforts
- unbending, Unbending; recreation; a state or occupation intended to give mental or bodily relief after effort.
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(physics) The transition of an atom or molecule from a higher energy level to a lower one.
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(music) The release following musical tension.
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remainder |
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noun
- A part or parts remain, remaining after some has/have been removed.
My son ate part of his cake and I ate the remainder.
You can have the remainder of my clothes.
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(commerce) Items left unsold and subject to reduction in price.
I got a really good price on this shirt because it was a remainder.
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(mathematics) The amount left over after subtracting the divisor as many times as possible from the dividend without producing a negative result. If (dividend) and d (divisor) are integers, then can always be expressed in the form n = dq + r, where q (quotation) and r () are also integers, and 0 ≤ r < d.
17 leaves a remainder of 2 when divided by 3.
11 divided by 2 is 5 remainder 1.
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repeater |
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noun (wikipedia, repeater, repeater (electronic device))
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(electronics) an electronic device that receives a weak or low-level signal and retransmits it at a higher level or higher power.
- (firearms) a gun that has a store of cartridges and does not need reloading after each shot.
- (ufology and similar studies) a person who regularly sees unexplained sightings of paranormal phenomenon.
- Note " this term is more commonly used by skeptics of the paranormal, and implies that the witness lacks credibility.
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result |
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noun
- A flying back; resilience.
- That which results; the conclusion or end to which any course or condition of things leads, or which is obtained by any process or operation; consequence or effect; as, the result of a course of action; the result of a mathematical operation.
- The decision or determination of a council or deliberative assembly; a resolve; a decree.
verb
- To leap back; to rebound.
- To come out, or have an issue; to terminate; to have consequences; -- followed by in; as, this measure will result in good or in evil.
- To proceed, spring, or rise, as a consequence, from facts, arguments, premises, combination of circumstances, consultation, thought, or endeavor.
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resultant |
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noun
- anything that results from something else; an outcome
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(mathematics) a vector that is the vector sum of multiple vectors
adjective
- following as a result or consequence of something
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rhombic |
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adjective
- having the characteristics of a rhombus.
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rhombohedron |
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noun (pl=rhombohedra, pl2=rhombohedrons)
- A prism with six faces, each a rhombus.
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rhomboid |
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noun
- A parallelogram whose adjacent sides are unequal in length
- Any of several muscles that control the shoulders
adjective
- resembling, or shaped like a rhombus or rhomboid
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rhombus |
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noun ( rhomb, i , pl2=rhombuses)
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(geometry) A parallelogram having all sides of equal length.
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Riemann surface |
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noun-
(mathematics) a one-dimensional complex manifold; a generalization of the complex plane
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right |
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noun
- That which complies with justice, law or reason.
''We're on the side of in this contest.
- A legal or moral entitlement.
You have no to talk to me like that!
- The right side or direction.
The pharamcy is just on the past the bookshop.
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(context, Politics) The ensemble of right-wing political parties; political conservatives as a group.
The political holds too much power.
verb
- To correct
Righting all the wrongs of the war will be impossible.
- To set upright
The tow-truck righted what was left of the automobile.
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(intransitive) To return to normal upright position.
When the wind died down, the ship righted.
adjective
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(archaic) straight, Straight, not bent.
- Having reference to a straight line; perpendicular, forming a 90-degree angle.
The kitchen counter formed a angle with the back wall.
- Complying with justice, correctness or reason; correct, just, true.
I thought you'd made a mistake, but it seems you were all along.
- appropriate, Appropriate, perfectly suitable; fit for purpose.
Is this the software for my computer?
- healthy, Healthy, sane, competent.
I'm afraid my father is no longer in his mind.
- Designating the side of the body which is positioned to the east if one is facing north. This arrow points to the right: →
After the accident, her leg was slighly shorter than her left.
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(archaic, sometimes used in titles) To a great extent or degree.
Sir, I am glad to meet you...
Members of the Queen's Privy Council are styled The Right Honourable for life.
The Right Reverend Monsignor Guido Sarducci
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(context, Politics) Pertaining to the political right; conservative.
adverb
- exactly, Exactly, precisely.
The arrow landed in the middle of the target.
Luckily we arrived at the start of the film.
- very, Very, extremely, quite.
I made a stupid mistake there, didn't I?
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Ann Hite, Ghost on Black Mountain,
- : The fog was hard to see through so I was on Tom Pritchard before I saw him.
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right angle |
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noun
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(geometry) An angle of 90 degrees; the bisect of the angle formed by a single straight line.
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right triangle |
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noun (pl=right triangles)
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(geometry) A triangle having a right angle as one of its interior angles.
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Ring |
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proper noun (infl, en, proper noun)
- An Irish family name.
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RMS |
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initialism
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(context, electronics, statistics) root mean square, Root mean square.
- Railway Mail Service.
- Royal Mail Ship.
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root mean square |
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noun
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(mathematics, of a set of numbers or values) The square root of the arithmetic mean of the squares.
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Rose |
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proper noun
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(given name, female), vernacular form of the medieval Rosa, reinforced by the English noun rose
- A diminutive of the given name Rosemary
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round |
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noun
- A circular object.
- A circular or repetitious route; hospital rounds.
The guards have started their rounds; the prisoner should be caught soon.
- An outburst of a certain event. For example, a round of applause.
- A song that is sung by groups of people with each subset of people starting at a different time.
- A serving of something; a dishing out of one of something to everybody, as in a round of drinks.
- A long-bristled, circular-headed paintbrush used in oil and acrylic painting.
- A bullet, or any individual ammunition shell.
- A period of time in a boxing match in which boxers are permitted to fight before being signaled to returned to their designated corner.
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(context, engineering, drafting, CAD) A rounded relief or cut at an edge, especially an outside edge, added for a finished appearance and to break sharp edges.
verb (rounds, rounding, rounded)
- To shape something into a curve.
The carpenter rounded the edges of the table.
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(italbrac, with "out") To finish; to complete; to fill out.
She rounded out her education with only a single mathematics class.
- To approximate a number, especially a decimal number by the closest whole number.
Ninety-five rounds up to one hundred.
- To turn past a boundary.
Helen watched him until he rounded the corner.
- To turn and attack someone or thing.
As a group of policemen went past him, one of them rounded on him, grabbing him by the arm.
adjective (er, more)
- circular, Circular or cylindrical; having a circular cross-section in one direction.
We sat at a table to make conversation easier.
- spherical, Spherical; shaped like a ball; having a circular cross-section in more than one direction.
The ancient Egyptian demonstrated that the Earth is , not flat.
- Lacking sharp angles; having gentle curves.
Our child's bed has corners for safety.
- plump, Plump
- complete, Complete, whole, not lacking.
The baker sold us a dozen.
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(mathematics) Of a number that has been rounded off or approximated.
One hundred is a nice number.
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(linguistics) pronounce, Pronounced with the mouth open in the shape of an "O".
adverb
- around, Around.
=
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round angle |
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noun (pluralround angles)
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(geometry) An angle of 360 degrees.
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