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Definition of RAY

7 definitions found:

Ray \Ray\ (r[=a]), v. t. [An aphetic form of array; cf. {Beray}.]
     1. To array. [Obs.] --Sir T. More.
        [1913 Webster]

     2. To mark, stain, or soil; to streak; to defile. [Obs.] "The filth that did it ray." --Spenser. [1913 Webster]

The Collaborative International Dictionary of English v.0.48 [gcide]

Ray \Ray\, n.
     Array; order; arrangement; dress. [Obs.]
     [1913 Webster]

           And spoiling all her gears and goodly ray. --Spenser. [1913 Webster]

The Collaborative International Dictionary of English v.0.48 [gcide]

Ray \Ray\, n. [OF. rai, F. rais, fr. L. radius a beam or ray, staff, rod, spoke of a wheel. Cf. {Radius}.]
     1. One of a number of lines or parts diverging from a common point or center, like the radii of a circle; as, a star of six rays. [1913 Webster]

     2. (Bot.) A radiating part of a flower or plant; the marginal florets of a compound flower, as an aster or a sunflower; one of the pedicels of an umbel or other circular flower cluster; radius. See {Radius}. [1913 Webster]

     3. (Zool.)
        (a) One of the radiating spines, or cartilages, supporting the fins of fishes. (b) One of the spheromeres of a radiate, especially one of the arms of a starfish or an ophiuran. [1913 Webster]

     4. (Physics)
        (a) A line of light or heat proceeding from a radiant or reflecting point; a single element of light or heat propagated continuously; as, a solar ray; a polarized ray. (b) One of the component elements of the total radiation from a body; any definite or limited portion of the spectrum; as, the red ray; the violet ray. See Illust. under {Light}. [1913 Webster]

     5. Sight; perception; vision; -- from an old theory of vision, that sight was something which proceeded from the eye to the object seen. [1913 Webster]

              All eyes direct their rays
              On him, and crowds turn coxcombs as they gaze.
                                                    --Pope. [1913 Webster]

     6. (Geom.) One of a system of diverging lines passing through a point, and regarded as extending indefinitely in both directions. See {Half-ray}. [1913 Webster]

     {Bundle of rays}. (Geom.) See {Pencil of rays}, below.

     {Extraordinary ray} (Opt.), that one of two parts of a ray divided by double refraction which does not follow the ordinary law of refraction.

     {Ordinary ray} (Opt.) that one of the two parts of a ray divided by double refraction which follows the usual or ordinary law of refraction.

     {Pencil of rays} (Geom.), a definite system of rays.

     {Ray flower}, or {Ray floret} (Bot.), one of the marginal flowers of the capitulum in such composite plants as the aster, goldenrod, daisy, and sunflower. They have an elongated, strap-shaped corolla, while the corollas of the disk flowers are tubular and five-lobed.

     {Ray point} (Geom.), the common point of a pencil of rays.

     {Roentgen ray}, {R["o]ntgen ray} (r[~e]nt"g[e^]n r[=a]`) (Phys.), a form of electromagnetic radiation generated in a very highly exhausted vacuum tube by an electrical discharge; now more commonly called {X-ray}. It is composed of electromagnetic radiation of wavelength shorter than that of ultraviolet light but longer than that of gamma rays. It is capable of passing through many bodies opaque to light, and producing photographic and fluorescent effects by which means pictures showing the internal structure of opaque objects are made, called X-rays, radiographs, sciagraphs, X-ray photographs, radiograms. So called from the discoverer, W. C. R["o]ntgen.

     {X ray}, the R["o]ntgen ray; -- so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity. [1913 Webster +PJC]

The Collaborative International Dictionary of English v.0.48 [gcide]

Ray \Ray\, v. i.
     To shine, as with rays. --Mrs. Browning.
     [1913 Webster]

The Collaborative International Dictionary of English v.0.48 [gcide]

Ray \Ray\, n. [F. raie, L. raia. Cf. {Roach}.] (Zool.) (a) Any one of numerous elasmobranch fishes of the order Raiae, including the skates, torpedoes, sawfishes, etc. (b) In a restricted sense, any of the broad, flat, narrow-tailed species, as the skates and sting rays. See {Skate}. [1913 Webster]

     {Bishop ray}, a yellow-spotted, long-tailed eagle ray ({Aetobatus narinari} syn. {Stoasodon narinari}) of the Southern United States and the West Indies; also called the {spotted eagle ray} and {white-spotted eagle ray}.

     {Butterfly ray}, a short-tailed American sting ray ({Pteroplatea Maclura}), having very broad pectoral fins.

     {Devil ray}. See {Sea Devil}.

     {Eagle ray}, any large ray of the family {Myliobatidae}, or {Aetobatidae}. The common European species ({Myliobatis aquila}) is called also {whip ray}, and {miller}.

     {Electric ray}, or {Cramp ray}, a torpedo.

     {Starry ray}, a common European skate ({Raia radiata}).

     {Sting ray}, any one of numerous species of rays of the family {Trygonidae} having one or more large, sharp, barbed dorsal spines on the whiplike tail. Called also {stingaree}. [1913 Webster]

The Collaborative International Dictionary of English v.0.48 [gcide]

Ray \Ray\, v. t. [imp. & p. p. {Rayed} (r[=a]d); p. pr. & vb. n. {Raying}.] [Cf. OF. raier, raiier, rayer, L. radiare to irradiate. See {Ray}, n., and cf. {Radiate}.]
     1. To mark with long lines; to streak. [Obs.] --Chaucer. [1913 Webster]

     2. [From {Ray}, n.] To send forth or shoot out; to cause to shine out; as, to ray smiles. [R.] --Thomson. [1913 Webster]

The Collaborative International Dictionary of English v.0.48 [gcide]

90 Moby Thesaurus words for "ray":
     Reptilia, X ray, actinic ray, actinism, amplitude, antinode, atom, atomic beam, atomic ray, beam, beam of light, crest, de Broglie wave, diffraction, diffuse, diffusion, disperse, dispersion, drop, electromagnetic radiation, electromagnetic wave, emanate, emanation, frequency, frequency band, frequency spectrum, gamma ray, gleam, guided wave, in phase, infrared ray, interference, invisible radiation, jot, leam, light, longitudinal wave, lota, mechanical wave, minim, molecule, moonbeam, node, out of phase, patch, pencil, period, periodic wave, photon, radiance, radiate, radiation, radio wave, radiorays, radius, ray of light, reinforcement, resonance, resonance frequency, ribbon, ribbon of light, scatter, scattering, scrap, seismic wave, shaft, shock wave, shoot, shred, smidgen, solar rays, sound wave, spoke, spread, streak, stream, stream of light, streamer, sunbeam, surface wave, tidal wave, transverse wave, trough, ultraviolet ray, violet ray, wave, wave equation, wave motion, wave number, wavelength

Moby Thesaurus II by Grady Ward, 1.0 [moby-thesaurus]

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