valvate

adjective

val·​vate ˈval-ˌvāt 

: having valves or parts resembling a valve

especially : meeting at the edges without overlapping

valvate sepals

Word History

Etymology

borrowed from New Latin valvātus, going back to Latin, "having folding doors," from valvae "folding door, leaves of such a door" + -ātus -ate entry 3 — more at valve

First Known Use

1829, in the meaning defined above