Valvate

Part of speech: adjective (a.)

1. Resembling, or serving as, a valve; consisting of, or opening by, a valve or valves; valvular.

2. Meeting at the edges without overlapping; -- said of the sepals or the petals of flowers in æstivation, and of leaves in vernation.

3. Opening as if by doors or valves, as most kinds of capsules and some anthers.