(anatomy) A thick, whitish cord of nerve tissue which is a major part of the vertebrate central nervous system. It extends from the brain stem down through the spine, with nerves branching off to various parts of the body.

(baseball) Third base.

(baseball) An easily caught fly ball.

An implement for opening bottles that are sealed by a cork. Sometimes specifically such an implement that includes a screw-shaped part, or worm. / The screw-shaped worm of a typical corkscrew.

Having the tightly winding shape of a corkscrew.

(intransitive) To wind or twist in the manner of a corkscrew; to move with much horizontal and vertical shifting. / (transitive) To cause something to twist or move in a spiral path or shape.

(anatomy) Either of two pairs of folds of mucous membrane stretched horizontally across the human larynx whose vibrations help to produce the voice.

Any of several species of coral with the appearance of a brain, in the families Mussidae and Merulinidae.

One of the four teeth which come in a horse's mouth at the age of four years and a half, one on each side of the upper and of the lower jaw, between the middle teeth and the tushes.

A tool used to remove the apple core from an apple for use in cooking; some forms of the tool segment the apple at the same time as removing its core.