| Raman effect |
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noun-
(physics) the inelastic scattering of photons with subsequent change in frequency and phase; employed in Raman spectroscopy
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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
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(colloquial) really.
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| reflect |
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verb
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(transitive) To bend back (light etc) from a surface.
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A mirror reflects the light that shines on it.
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(transitive) To mirror, or show the image of something.
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The shop window reflected his image as he walked past.
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(transitive) To bring as a consequence.
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The team's victory reflects the Captain's abilities.
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(intransitive) To be bent back.
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The laser light was reflected from the spaceman's visor.
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(intransitive) To give evidence of someone's or something's character etc.
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The teacher's ability reflects well on the school.
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(intransitive) To think seriously; to ponder or consider.
- People do that sort of thing every day, without ever stopping to on the consequences.
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| reflectometer |
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noun
- an instrument used to measure the reflectance of a surface
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| reflector |
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noun
- Something which reflects heat, light or sound, especially something having a reflecting surface.
- A reflecting telescope.
- A small, often red, reflecting disk on the rear of a vehicle that reflects the headlights of other vehicles.
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| refract |
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verb
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(context, intransitive, of light) To change direction as a result of entering a different medium
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(transitive) To cause (light) to change direction as a result of entering a diffrent medium.
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A prism can light.
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| refractive index |
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noun-
(physics) the ratio of the speed of light in air or vacuum to that in another medium
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| refractometer |
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noun-
(physics) An optical instrument used to measure the refractive index of a substance
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| resolution |
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noun
- The state of being resolute.
His stalwart resolution is perhaps admirable, perhaps foolish.
- A statement of intent, a vow (often New Year's resolution).
My resolution is to cut back on the fast food this year.
- The act of discerning detail.
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(computing) The degree of fineness with which an image can be recorded or produced, often expressed as the number of pixels per unit of length (typically an inch).
Printing at higher resolution will cause a reduction in performance.
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(context, computer hardware) The number of pixels in an image that are stored or displayed.
This monitor's maximum resolution is 800x600.
- A formal statement adopted by an assembly.
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(science) The separation of the constituent parts (of a spectrum etc).
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(science) The degree of fineness of such a separation.
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(music) Progression from dissonance to consonance; a chord to which such progression is made.
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| resolving power |
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noun
- a quantitative measure of the ability of an optical instrument to produce separable images
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| reticle |
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noun
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(obsolete) a small net
- a gridwork or lattice of lines set into the eyepiece of optical instruments to help with measurements or observation
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| reticule |
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noun
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A reticle; a grid, network, or crosshatch, especially as found in the eyepiece of various optical instruments to aid measurement or alignment.
- A small women's bag made of a woven net-like material.
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2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 606:
- :Pléiade ... lingered through another bottle of wine before producing from her a Vacheron & Constantin watch
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