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WordReference Random House Learner's Dictionary of American English © 2024rain•bow /ˈreɪnˌboʊ/USA pronunciation n. [countable]- a bow or arch of colors appearing in the sky opposite the sun and caused by the sun's rays passing through drops of rain.
- a wide variety or range:The bouquet was a rainbow of colors.
adj. [before a noun] - of many colors;
multicolored. - Governmentmade up of different races, groups, etc.:a rainbow political coalition.
WordReference Random House Unabridged Dictionary of American English © 2024rain•bow (rān′bō′),USA pronunciation n. - Meteorologya bow or arc of prismatic colors appearing in the heavens opposite the sun and caused by the refraction and reflection of the sun's rays in drops of rain. Cf. primary rainbow, secondary rainbow.
- a similar bow of colors, esp. one appearing in the spray of a waterfall or fountain.
- any brightly multicolored arrangement or display.
- a wide variety or range;
gamut. - a visionary goal:He pursued the rainbow of a singing career for years before becoming a success.
- FishSee rainbow trout.
adj. - Governmentmade up of diverse races, ethnic groups, etc.:a rainbow coalition of supporters.
- bef. 1000; Middle English reinbowe, Old English regnboga; cognate with Old Norse regnbogi, German Regenbogen. See rain, bow2
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