Pronunciation: (ku-lā'zu), [key]
—pl. -zas, -zaePronunciation: (-zē). [key]
1. Zool.one of the two albuminous twisted cords which fasten an egg yolk to the shell membrane.
2. Bot.the point of an ovule or seed where the integuments are united to the nucellus. See diag. under orthotropous.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.