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Meaning of rainbow

rain•bow

Pronunciation: (rān'bō"), [key]
— n.
  1. a 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.
  2. a similar bow of colors, esp. one appearing 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: He pursued the rainbow of a singing career for years before becoming a success.
  6. See
—adj.
  1. made up of diverse races, ethnic groups, etc.: a rainbow coalition of supporters.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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