Pronunciation: (kOO'kOO-spit", kook'OO-), [key]
1. Also called frog spit. a frothy secretion found on plants, exuded by the young of certain insects, as the froghoppers, and serving as a protective covering.
2. an insect that produces this secretion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.