| 释义 |
rainbow
rain·bow R0025100 (rān′bō′)n.1. a. An arc of spectral colors, usually identified as red, orange, yellow, green, blue, indigo, and violet, that appears in the sky opposite the sun as a result of the refractive dispersion of sunlight in drops of rain or mist.b. A similar arc or band, as one produced by a prism or by iridescence.c. A graded display of colors.2. An illusory hope: chasing the rainbow of overnight success.3. A diverse assortment or collection.
[Middle English, from Old English rēnboga : rēn, rain + boga, bow; see bow3.]rainbow (ˈreɪnˌbəʊ) n1. (Physical Geography) a bow-shaped display in the sky of the colours of the spectrum, caused by the refraction and reflection of the sun's rays through rain or mist2. a. any similar display of bright coloursb. (as modifier): a rainbow pattern. 3. an illusory hope: to chase rainbows. 4. (Government, Politics & Diplomacy) (modifier) of or relating to a political grouping together by several minorities, esp of different races: the rainbow coalition.
Rainbow (ˈreɪnˌbəʊ) na member of the Rainbow Guides, the youngest group of girls (aged 5-7 years) in The Guide Associationrain•bow (ˈreɪnˌboʊ)
n. 1. a bow or arc of prismatic colors in the heavens opposite the sun; caused by the refraction and reflection of the sun's rays in drops of rain. 2. a similar bow of colors, esp. one in the spray of a waterfall or fountain. 3. any brightly multicolored arrangement or display. 4. a wide variety or range; gamut. 5. a visionary goal. adj. 6. of many colors; multicolored. 7. made up of diverse races, groups, etc.: a rainbow coalition. [before 1000] rain·bow (rān′bō′) An arc-shaped spectrum of color seen in the sky opposite the sun, especially after rain, caused by the refraction and reflection of sunlight by droplets of water suspended in the air.rainbow - Comes from Old Norse regnbogi (becoming Old English renboga, ren, "rain," and boga, "bend, bow") and is a bow or arch of the colors of the prism that is formed in the sky opposite to the sun by the reflection, double refraction, and dispersion of the sun's rays in falling drops of rain.See also related terms for reflection.Rainbow a rainbow as a symbol of a past storm.Examples: rainbow of hope, 1876; of the storms of life, 1813.Thesaurus| Noun | 1. |  rainbow - an arc of colored light in the sky caused by refraction of the sun's rays by rainsky - the atmosphere and outer space as viewed from the eartharc, bow - something curved in shape | | 2. | rainbow - an illusory hope; "chasing rainbows"promise, hope - grounds for feeling hopeful about the future; "there is little or no promise that he will recover" |
rainbow nounRelated words
adjective iridalrainbownounA fantastic, impracticable plan or desire:bubble, castle in the air, chimera, dream, fantasy, illusion, pipe dream.Translationsrain (rein) noun1. water falling from the clouds in liquid drops. We've had a lot of rain today; walking in the rain; We had flooding because of last week's heavy rains. 雨 雨2. a great number of things falling like rain. a rain of arrows. 像雨般一陣落下的東西 雨点般降落的东西（下雨般的）一阵 verb1. (only with it as subject) to cause rain to fall. I think it will rain today. 下雨 下雨2. to (cause to) fall like rain. Arrows rained down on the soldiers. 雨點般地落下 雨点般地落下ˈrainy adjective having (many) showers of rain. a rainy day; the rainy season; rainy weather. 下雨的，多雨的 下雨的，多雨的 ˈraininess noun 下雨，多雨 下雨，多雨 ˈrainbow noun the coloured arch sometimes seen in the sky opposite the sun when rain is falling. 彩虹 彩虹ˈrain check: take a rain check (American) (to ask) to do something at a later time. Thanks for inviting me to dinner, but can I take a rain check on it? (美)改期再做 延期，改日进行 ˈraincoat noun a waterproof coat worn to keep out the rain. 雨衣 雨衣ˈraindrop noun a single drop of rain. 雨點，雨滴 雨点ˈrainfall noun the amount of rain that falls in a certain place in a certain time. We haven't had much rainfall this year; the annual rainfall. 降雨量 降雨量ˈrain forest noun a thick tropical forest in a region where it rains a lot. 熱帶雨林 雨林ˈrain-gauge noun an instrument for measuring rainfall. 雨量計 雨量器keep/save etc for a rainy day to keep (especially money) until one needs it or in case one may need it. 未雨綢繆 未雨绸缪rain cats and dogs to rain very hard. 傾盆大雨 倾盆大雨the rains (in tropical countries) the rainy season. (熱帶國家的)雨季 雨季(as) right as rain perfectly all right; completely well. 十分正確，完全健康 十分正确
rainbow
always chasing rainbowsConstantly pursuing something more appealing than what one currently has—no matter how unrealistic it is. You can't be always chasing rainbows your whole life—you need to pick a stable career and start being an adult. You won't find a better girlfriend than Tia. Why are you always chasing rainbows?See also: always, chase, rainbowchase rainbowsTo constantly pursue things that are unrealistic or unlikely to happen. You can't chase rainbows your whole life—you need to pick a stable career and start being an adult.See also: chase, rainbowchasing rainbowsConstantly pursuing things that are unrealistic or unlikely to happen. You can't always be chasing rainbows your whole life—you need to pick a stable career and start being an adult.See also: chase, rainbowat the end of the rainbowSaid of something that is appealing but seemingly illusive or very hard to obtain. Yeah, I highly doubt you're going to find a raise at the end of the rainbow when you meet with your boss today.See also: end, of, rainbowbe chasing rainbowsTo be constantly pursuing things that are unrealistic or unlikely to happen. You can't always be chasing rainbows your whole life—you need to pick a stable career and start being an adult.See also: chase, rainbowthe end of the rainbowThat which is greatly desired but is exceptionally difficult or elusive to achieve or obtain. I spent my whole college life thinking a cushy job like this was the end of the rainbow, but now that I have it, I'm feeling fairly disenchanted. After such a long legal battle, we're just happy to know that there will be a bit of closure at the end of the rainbow.See also: end, of, rainbowlife isn't all sunshine and rainbowsReal life does not just consist of innocent, carefree happiness; there is more hardship or suffering in reality than one realizes. I know it's ugly having to see someone you cared about betray you like that, but life isn't all sunshine and rainbows. Friends who aren't parents themselves will have a harder time realizing that life isn't all sunshine and rainbows when you have a new baby in the house.See also: all, and, life, rainbow, sunshinelife isn't all rainbows and unicornsReal life does not just consist of innocent, carefree happiness; there is more hardship or suffering in reality than one realizes. I know it's ugly having to see someone you cared about betray you like that, but life isn't all rainbows and unicorns. Friends who aren't parents themselves will have a harder time realizing that life isn't all rainbows and unicorns when you have a new baby in the house.See also: all, and, life, rainbowalways chasing rainbowstending to look for something (more) exciting and (more) rewarding but without realistic expectations. He can't seem to settle down and enjoy life. He's always chasing rainbows.See also: always, chase, rainbowthe end of the rainbow If you say that something is the end of the rainbow, you mean that it is something that you would very much like to get or achieve it, although in reality this will be very difficult. For all these teams, Wembley was the elusive prize, the end of the rainbow. Note: You can also say that something is at the end of the rainbow. There's a great big prize at the end of the rainbow and we both want it. Compare with a pot of gold. Note: There is an old legend that a pot of gold is buried at the point where the end of the rainbow meets the ground. See also: end, of, rainbowbe chasing rainbows If someone is chasing rainbows, they are wasting their time by trying to get something which they can never have. My teachers told me I'd never make it as an actor and that I was just chasing rainbowsSee also: chase, rainbowat the end of the rainbow used to refer to something much sought after but impossible to attain. This phrase refers to the story of a crock of gold supposedly to be found by anyone who succeeds in reaching the end of a rainbow.See also: end, of, rainbowchase rainbows (or a rainbow) pursue an illusory goal.See also: chase, rainbowrainbow n. a bowlegged person. (Also a rude term of address.) Ask that rainbow if he has to have special trousers made. chasing rainbowsPursuing illusionary goals, trying to achieve impossible things. The term comes from the old tale about finding a crock of gold if one digs at the end of the rainbow, where it touches earth. The idea of chasing rainbows as equivalent to a fruitless quest was expressed in the nineteenth century; those who did so were called “rainbow chasers.” A popular song, “I’m Always Chasing Rainbows,” with words by Joseph McCarthy and music by Harry Carroll (based on Chopin’s C-sharp minor Fantasy Impromptu), was published in 1918. It was used in several motion pictures, among them Ziegfeld Girl, with Judy Garland, and was revived with considerable success in 1946. See also: chase, rainbowrainbow
rainbow, arc showing the colors of the spectrumspectrum,
arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other property. Beams of charged particles can be separated into a spectrum according to mass in a mass spectrometer (see mass spectrograph).
..... Click the link for more information. , violet inside and red outside, which appears when the sun shines through water droplets. It often appears while the sun is shining after a brief thundershower in the late afternoon or on fog layers. The sun, the observer's eye, and the center of the arc must be aligned—the rainbow appears in the part of the sky opposite the sun. The rainbow is an arc of 180° if the sun is at the horizon, and it cannot appear if the sun is high in the sky. It is caused by the refractionrefraction,
in physics, deflection of a wave on passing obliquely from one transparent medium into a second medium in which its speed is different, as the passage of a light ray from air into glass.
..... Click the link for more information. and reflectionreflection,
return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles governing the reflection of light and sound are similar, for both normally travel in straight lines and both are wave phenomena.
..... Click the link for more information. of rays from the sun on a "sheet" of water droplets. The light is refracted as it enters the sphere of the individual water drop, then is reflected from the drop's opposite side, and is again refracted as it leaves the drop and passes to the observer's eye. When conditions are suitable, a double rainbow may be seen; a larger, paler, secondary rainbow with colors reversed (red inside) outside the primary arc is caused by two refractions and two reflections of the ray while it is inside a drop. The "rainbows" of mist, lawn spray, and spray from a waterfall are similarly caused. The lunary rainbow, seen much less often, is usually observable soon after dark following a brief summer storm or shower when the moon is nearly full. Aristotle was first to devote serious attention to the rainbow, but his mistaken explanation of it misled thinkers for centuries. DescartesDescartes, René
, Lat. Renatus Cartesius, 1596–1650, French philosopher, mathematician, and scientist, b. La Haye. Descartes' methodology was a major influence in the transition from medieval science and philosophy to the modern era.
..... Click the link for more information. in the 17th cent. also attempted to account for the phenomenon but the correct explanation of it could not be furnished until the physics of light and its reflection and refraction were understood and the spectrum explained. In religion and art the rainbow symbolizes God's promise of mercy to mankind after the Deluge (Gen. 9.13). The Greeks and Romans called the rainbow the sign of Iris, messenger of the gods. The IncaInca
, pre-Columbian empire, W South America. The name Inca may specifically refer to the emperor, but is generally used to mean the empire or the people. Extent and Organization of the Empire
..... Click the link for more information. and other Native Americans regarded the rainbow as a gift from the sun-god. There are fairy tales of searches for the pot of gold at the foot of the rainbow. Bibliography See R. Greenler, Rainbows, Halos, and Glories (1990). Rainbow an optical phenomenon of the atmosphere that resembles a multicolored are in the sky. A rainbow is observed when solar rays shine on water droplets that are in the part of the sky opposite the sun. The center of the are of a rainbow is located on a straight line that passes from the solar disk to the observer’s eye; that is, the center is at a point opposite the sun. The are of a rainbow is the part of a circle circumscribed around this point with a radius of 42° (see Figure 1).  Figure 1. Schematic of the determination of the top and center of a rainbow
The color sequence in a rainbow is the same as in the solar spectrum. Red is usually located on the outside edge of the bow, and violet is usually on the inside edge. Secondary rainbows, which border on the main arc, are sometimes visible from the inside edge. The visible part of the rainbow are is determined by the sun’s position; when the sun is on the horizon, a rainbow is a semicircular are; as the sun rises, the visible part of the are decreases; and when the sun is at an altitude of 42°, the rainbow disappears. A phenomenon similar to the rainbow may be observed in the spray of fountains and waterfalls. Moonbows and rainbows created by artificial light sources also occur. A secondary rainbow is frequently observed that has an angular radius of about 52° and a reversed color sequence. The first rainbow theory was proposed in 1637 by R. Descartes. A more exact theory was developed in 1836 by the British astronomer G. Airy and in the late 19th century by the Austrian geophysicist I. M. Pernter. This theory is based on calculating the diffraction and interference effects that accompany the encounter of solar rays with the curtain formed by raindrops. REFERENCEMinnaert, M. Svet i tsvet v prirode. Moscow, 1958. (Translated from English.)What does it mean when you dream about a rainbow?The rainbow is a very happy and promising sign. Hopes and dreams are denoted by this wonderful symbol. Good luck comes to those who dream rainbow dreams. rainbow[′rān‚bō] (electronics) Technique which applies pulse-to-pulse frequency changing to identifying and discriminating against decoys and chaff. (optics) Colored arc seen in the sky when the sun or moon is illuminating large numbers of falling raindrops. (petroleum engineering) Chromatic iridescence observed in drilling fluid that has been circulated in a well, indicating contamination or contact with fresh hydrocarbons. rainbowGod’s assurance He would not send another great flood. [O.T.: Genesis, 9:12–16]See: Hoperainbow1. a bow-shaped display in the sky of the colours of the spectrum, caused by the refraction and reflection of the sun's rays through rain or mist 2. of or relating to a political grouping together by several minorities, esp of different races Rainbow(1) See Rainbow Series.
(2) Digital Equipment's original offering in the PC market. The Rainbow, released between 1982 and 1986, used an Intel 8088 to run MS/DOS, but could also run CP/M programs because its Z80 keyboard processor served as an alternate CPU. The Rainbow was not hardware-compatible with the IBM PC.Rainbow (dreams)Rainbows are colorful bridges that fall across the sky, but we cannot walk across them (or use them to get to our pot of gold). Currently you may experience great joy and have extraordinary or even magical ideas, but remember that you cannot walk across the rainbow bridge, so stay wellgrounded. Usually a rainbow follows a rainstorm. If so, you have weathered a difficult time that is coming to an end;this dream symbol may represent your optimism. Generally, rainbows make people smile and feel happy. Thus, some may consider this dream a sign of your good luck.Rainbow
RAINBOW
| Acronym | Definition |
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| RAINBOW➣Radio Access Independent Broadband on Wireless | | RAINBOW➣Reduced and Internally-Biased Oxide Wafer |
rainbow
Synonyms for rainbownoun a fantastic, impracticable plan or desireSynonyms- bubble
- castle in the air
- chimera
- dream
- fantasy
- illusion
- pipe dream
Words related to rainbownoun an arc of colored light in the sky caused by refraction of the sun's rays by rainRelated Wordsnoun an illusory hopeRelated Words |