A lightweight hollow plastic disk worn inside the brassiere to help correct flat or inverted nipples for breastfeeding.

plural of shell steak

A strip steak with the bone left in and no tenderloin attached.

A gastropod (genus Lambis) distinguished by long, channelled spines.

A form of projectile for artillery.

The casing of a pulley block.

A white earthy deposit resulting from the accumulation of fragments of shells.

plural of shell marl

(glaciology, oceanography) Ice which is no longer supported by the water beneath it, and instead has a cavity underneath.

(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.