What do a.m. and p.m. stand for?

secondary rainbow

a faint rainbow formed by light rays that undergo two internal reflections in drops of rain, appearing above the primary rainbow and having its colors in the opposite order.
Origin of secondary rainbow
1785-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for secondary rainbow
  • Since a small amount of energy is lost in the second reflection, the secondary rainbow is never as brilliant as the primary one.
  • The primary rainbow is the more prominent one inside, and the secondary rainbow is the fainter one outside.
  • The secondary rainbow is the result of two refractions and two internal reflections of the sunlight by the rain drops.

Word of the Day

Difficulty index for secondary rainbow

Few English speakers likely know this word

Word Value for secondary

Scrabble Words With Friends