A course over which races are run. / (Britain) A racetrack where horse races are run.

An indoor dipole antenna consisting of two usually extensible rods connected to a base to form a V shape.

plural of rabbit ear

Alternative form of Welsh rarebit

A chopping punch to the back of the neck or head.

A competition for military supremacy between two powers, especially for the most weapons and the best military technology. / (figuratively) Any similar competition that involves competing developments.

one who commits crimes (especially fraud, bribery, loansharking, extortion etc.) to aid in running a shady or illegal business. / one who instigates or has involvement with a racket.

to carry out illegal business activities or criminal schemes. / to commit crimes systematically as part of a criminal organization.

(medicine) Rickets. / (botany) A disease that produces abortion in the fruit.

An oscilloscope used as the viewing screen of a radar system.