Resembling, involving, or illuminated with a rainbow; patterned with the colours of the rainbow. / (chiefly US, rare) Made up of several races or ethnicities; rainbow.

simple past tense and past participle of rainbow

(transitive) To brighten with, or as with, a rainbow; to pattern with the colours of the rainbow. / (intransitive) To take the appearance of a rainbow.

Multicolored. / (attributive, chiefly US) Made up of several races or ethnicities, or (more broadly) of several cultural or ideological factions. / (attributive) LGBT.

A multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air. / Any prismatic refraction of light showing a spectrum of colours.

plural of rainbow

Third-person singular simple present indicative form of rainbow

A member of the Rainbow Guides, a Girl Guide movement for younger girls.

A surname.

plural of Rainbow