home r Elo Vazquez rainbow rain⋅bow [reyn-boh] –noun 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. 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. a b c d e f g h i j k l m n o p q r s t u v w x y z rack rain ray rainbow raze radio read reach record recumbent rabbit red-rev rat