rainbowing

Verb

rainbow (third-person singular simple present rainbows, present participle rainbowing, simple past and past participle rainbowed)

1. (transitive) To brighten with, or as with, a rainbow; to pattern with the colours of the rainbow.
2. (intransitive) To take the appearance of a rainbow.
   • We saw birds and butterflies rainbowing in the sun; lazy lizards crawling in the heat; inguanas blinking on stone wall, with mouth wide open for flies; poisonous snakes, not only carved on walls, but gliding through the grass.1917, G[ulian] L[ansing] Morrill, The Devil in Mexico, Minneapolis, MN: [?], page 55
3. In climbing gyms where the rocks to climb are colored to indicate suggested climbing routes, to climb rocks of different colors, thereby ignoring such routes.
   • “She's going to learn to belay while I'm climbing? What if I fall?” “You're not going to fall while rainbowing a 5.8, and besides, she'll catch you.” “I could die.” “That would be tragic,” I said. Kaitlyn crossed her arms.2016, Kristin Lenz, Art of Holding On and Letting Go, Elephant Rock Books, →ISBN

See all 21 meanings of rainbow