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The Collaborative International Dictionary
Ventricose shell

Ventricose \Ven"tri*cose`\, Ventricous \Ven"tri*cous\, a. [NL. ventricosus, fr. L. venter belly.] (Nat. Hist.) Swelling out on one side or unequally; bellied; ventricular; as, a ventricose corolla. Ventricose shell. (Zo["o]l.)

  1. A spiral shell having the body whorls rounded or swollen in the middle.

  2. A bivalve shell in which the valves are strongly convex.