Pronunciation: (val'vāt), [key]
1. furnished with or opening by a valve or valves.
2. serving as or resembling a valve.
a. opening by valves, as certain capsules and anthers.
b. meeting without overlapping, as the parts of certain buds.
c. composed of or characterized by such parts.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.