Any of various species of marine bivalve shells formerly belonging to the no longer accepted genus Avicula, now a synonym of Pteria, with species assigned to several genera, in which the hinge border projects like a wing.

(zoology) A brachiopod (Brachiopoda).

Any of the marine gastropod mollusks of the genus Fasciolaria, especially Fasciolaria tulipa.

A cowrie.

Any of several species of conical gastropod shells in the family Trochidae and genus Astraea in family Turbinidae, the margin of the shells being toothed somewhat like the rowel of a spur.

Any species of Pleurotomaria, a genus of pearly spiral gastropod shells having a deep slit in the outer lip. Many fossil species are known, and a few living ones are found in deep water in tropical seas.

present participle of shell shock

plural of shell shock

Third-person singular simple present indicative form of shell shock

present participle of shell-shock