| oblate |
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noun
- (italbrac, Roman Catholic Church) A person dedicated to a life of religion or monasticism, especially a member of an order without religious vows or a lay member of a religious community.
- A child given up by its parents into the keeping or dedication of a religious order or house.
- 2007: The Venerable Bede started as an at St Paul's, Jarrow, but by the time of his death in 735 was surely the most learned man in Europe. " Tom Shippey, "I Lerne Song", London Review of Books 29:4, p. 19
adjective
- Flattened or depressed at the poles.
- 1922: Why should I not speak to him or to any human being who walks upright upon this orange? " James Joyce, Ulysses
- 1997: " "Tis prolate, still," with a long dejected Geordie O. "Isn"t it"?" "I"m an Astronomer," trust me, "tis gone well to ." " Thomas Pynchon, Mason & Dixon
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| oblique |
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noun
- (geometry) An oblique line.
- (rare) The punctuation sign "/"
verb (obliques, obliquing, obliqued)
- To deviate from a perpendicular line; to move in an oblique direction.
- Quotations
- Projecting his person towards it in a line which obliqued from the bottom of his spine. - Sir. W. Scott.
- (military) To march in a direction oblique to the line of the column or platoon; " formerly accomplished by oblique steps, now by direct steps, the men half- facing either to the right or left.
adjective
- Not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined.
- It has a direction oblique to that of the former motion. - Cheyne.
- Not straightforward; indirect; obscure; hence, disingenuous; underhand; perverse; sinister.
- The love we bear our friends . . . Hath in it certain oblique ends. - Drayton.
- This mode of oblique research, when a more direct one is denied, we find to be the only one in our power. - De Quincey.
- Then would be closed the restless, oblique eye. <br /> That looks for evil, like a treacherous spy. - Wordworth.
- Not direct in descent; not following the line of father and son; collateral.
- His natural affection in a direct line was strong, in an oblique but weak. - Baker.
- (botany, of leaves) Having the base of the blade asymmetrical, with one side larger or extending further than the other.
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| oblong |
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noun - Something with an oblong shape.
(trans-top, with an oblong shape)
- French: oblong(fr)m
(trans-mid)
(trans-bottom)
adjective - Describing something that is longer than it is wide.
- Roughly rectangular or ellipsoidal.
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| obtuse triangle |
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noun , also obtuse-angled triangle
- (geometry) A triangle one of the angles of which is obtuse.
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| octad |
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noun
- a group of eight things
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| octagon |
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noun
- (geometry) A polygon with eight sides and eight angles.
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| octagonal |
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adjective
- (geometry) Shaped like an octagon, in having eight sides and eight angles.
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| octahedral |
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adjective
- having eight plane surfaces
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| octahedron |
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noun (octahedr, a , pl2=octahedrons)
- (geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.
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| octant |
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noun
- The eighth part of a circle; an arc of 45 degrees.
- (geometry): The eighth part of a disc; a sector of 45 degrees; half a quadrant.
- (nautical): An instrument for measuring angles, particularly of elevation.
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| octuple |
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adjective - Eightfold
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| octuplet |
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noun
- one of a group of eight babies born from the same mother during the same birth, (i.e. one of eight twins).
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| odd |
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noun See odds
- (defn, English)
adjective
- strange, unusual.
- (arithmetic) (no comparative or superlative) Not divisible by two.
- (rare) But for the odd exception.
- left over, remaining when the rest have been grouped
- I'm the one out.
- casual, irregular.
- He's only worked jobs.
- (in combination with a number) about, approximately.
- There were thirty- people in the room.
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| one-to-one |
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noun (plural one-to-ones)
- A personal relationship, especially a sexual one, between two people. Colloquial abbreviation: 121 or 1-2-1
- (mathematics) injection; a mapping which takes no two points in the preimage to the same point in the image
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| onto |
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adjective
- (mathematics) assuming each of the values in its codomain; having its range equal to its codomain (said of a function)
- Considered as a function on the real numbers, the exponential function is not onto.
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| operand |
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noun
- (mathematics) A quantity to which an operator is applied (in <math>3 - x</math>, the operands of the subtraction operator are 3 and <math>x</math>).
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| operations research |
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noun (abbreviated as OR)
- the application of scientific methods and techniques to problems of decision making
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| optimization |
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noun
- the design and operation of a system or process to make it as good as possible in some defined sense
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| optimize |
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verb (optimiz, es)
- (intransitive) To act optimistically or as an optimist.
- (intransitive) To become optimal.
- (transitive) To make (something) optimal.
- (transitive) To make (something) more efficient, such as a computer program.
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| order |
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noun
- (uncountable) arrangement, Arrangement, disposition, sequence.
- (uncountable) Good arrangement; opposite to chaos.
- (countable) A command.
- (countable) A request for some product or service.
- (countable) A religious group.
- (context, countable, biology, taxonomy) A rank in the classification of organisms, below class and above family; a taxon at that rank
- Magnolias belong to the Magnoliales.
- (cricket) The sequence in which a side"s batsmen bat; the batting order.
- (electronics) a power of polynomial function in an electronic circuit"s block, such as a filter, an amplifier, etc.
- a 3-stage cascade of a 2nd-order bandpass Butterworth filter.
- (chem) A number of a chemical reaction
- order of a reaction
- (graphtheory) a number of vertices in a graph
- (context, order theory) A partially ordered set.
verb
- To set in (any) order (1).
- To set in (a good) order (2).
- To issue a command.
- To request some product or service.
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| ordered pair |
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noun (plural ordered pairs)
- (settheory) A set containing exactly two elements in a fixed order, so that, when the elements are different, exchanging them gives a different set. Notation: (a, b) or <math>\langle a, b\rangle</math>
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| ordinal number |
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noun
- (arithmetic) A number used to denote position in a sequence.
- "Third" is an , while "three" is a cardinal number.
- (mathematics) A generalized kind of number to denote the size of a well-ordered set.
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| ordinate |
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noun - (mathematics) the value of a coordinate on the vertical (Y) axis
adjective
- arranged regularly in rows
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| Orient |
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proper noun
- Eastern countries and regions
- East
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| orthocenter |
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noun
- (geometry): the intersection of the three lines that can be drawn flowing from the three corners of a triangle to a point along the opposite side where each line intersect that side at a 90 degree angle; in an acute triangle, it is inside the triangle; in an obtuse triangle, it is outside the triangle.
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| orthographic |
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adjective - Of a projection used in maps, architecture etc., in which the rays are parallel.
- Of, or relating to, orthography.
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| orthonormal |
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adjective
- (mathematics) Of a set of vectors, both orthogonal and normalized.
- (mathematics) Of a linear transformation that preserves both angles and lengths.
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| osculate |
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verb to osculate (transitive)
- to kiss someone or something
- (mathematics) to touch so as to have a common Wikipedia:tangent, tangent at the point of contact
to osculate (intransitive)
- to make contact
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| osculation |
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noun
- the action of kissing
- a kiss
- a close contact
- (mathematics) a contact between curves or surfaces, at which point they have a common tangent
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| oval |
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noun
- A shape rather like an egg or an ellipse.
- A sporting arena etc. of this shape.
- Note: an ellipse is a precise mathematical shape, but an oval is not.
proper noun The Oval
- (Cricket) A cricket ground in South London.
adjective
- Having the shape of an oval.
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