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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