'Ventricose shell' definitions:

Definition of 'Ventricose shell'

From: GCIDE

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. [1913 Webster]
Ventricose shell. (Zool.) (a) A spiral shell having the body whorls rounded or swollen in the middle. (b) A bivalve shell in which the valves are strongly convex. [1913 Webster]