Category:Univalve

U"ni*valve, n. Etym: [uni- + valve: cf. F. univalve.] (zoöl.)

Defn: a shell consisting of one valve only; a mollusk whose shell is Composed of a single piece, as the snails and conchs.

Note: most univalves are spiral and are the shells of gastropods, but Many belong to cephalopods and pteropods. A large number of univalves Belonging to the gastropods are conical, cup-shaped, or shieldlike, As the limpets.

Univalve; univalved U"ni*valve, u"ni*valved, a. Etym: [cf. F. univalve.] (bot. & zoöl.)

Defn: having one valve; as, a univalve shell or pericarp.