A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.
rainbow in Danish is regnbue
rainbow in Dutch is regenboog
rainbow in French is arc-en-ciel, arc en ciel
rainbow in German is regenbogen
rainbow in Italian is arcobaleno
rainbow in Spanish is arco iris