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ray    音标拼音: [r'e]
n. 光线,放射线,闪烁,光辉,微量
vi. 射出光线,浮现,放射光线
vt. 放射,显出

光线,放射线,闪烁,光辉,微量射出光线,浮现,放射光线放射,显出

ray
萤光X-射线


ray
阴极射线管

ray
射线

ray
n 1: a column of light (as from a beacon) [synonym: {beam}, {beam of
light}, {light beam}, {ray}, {ray of light}, {shaft},
{shaft of light}, {irradiation}]
2: a branch of an umbel or an umbelliform inflorescence
3: (mathematics) a straight line extending from a point
4: a group of nearly parallel lines of electromagnetic radiation
[synonym: {beam}, {ray}, {electron beam}]
5: the syllable naming the second (supertonic) note of any major
scale in solmization [synonym: {re}, {ray}]
6: any of the stiff bony spines in the fin of a fish
7: cartilaginous fishes having horizontally flattened bodies and
enlarged winglike pectoral fins with gills on the underside;
most swim by moving the pectoral fins
v 1: emit as rays; "That tower rays a laser beam for miles
across the sky"
2: extend or spread outward from a center or focus or inward
towards a center; "spokes radiate from the hub of the wheel";
"This plants radiate spines in all directions" [synonym:
{radiate}, {ray}]
3: expose to radiation; "irradiate food" [synonym: {irradiate},
{ray}]

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]


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

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


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]


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


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]


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]

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



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