Pronunciation: (gā'lē-u), [key]
—pl. -le•aePronunciation: (-lē-ē"). [key]
1. Bot.a part of the calyx or corolla having the form of a helmet, as the upper lip of the corolla of the monkshood.
2. Anat.any of several helmet-shaped structures.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.