(zoology) A brachiopod (Brachiopoda).

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

Any of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped.

A marine gastropod of the family Turbinidae, or the shell thereof.

A small bay and former port and oil refinery in Thurrock borough, Essex, England (OS grid ref TQ7481)

(zoology) A univalve shell whose volutions run in the opposite direction to that of a standard screw thread. / (computing) An interactive command shell initiated from a remote computer.

(computing) The redirection of the shell to a remote service so that input can be entered and output received without being physically present.

Any of multiple bivalves, particularly a bean clam, but sometimes also a tellin or close relative.

Any mollusc of the genus Limatula.

The shell of young oysters, harvested for pearls and for use in ornamental work.