An early design of pit (core of an implosion-type nuclear weapon), used in the detonation over Nagasaki, Japan, in August 1945.

A disease of apples and pears, characterised by dark spots of dead cells, believed to be caused by calcium deficiency.

A trap consisting of a pit lined with punjis.

plural of pit crew

(motor racing) The mechanics who work on a car during pit stops.

(architecture) A depressed section of flooring within a larger room, having built-in seating and sometimes a central table.

(slang, sometimes derogatory) A female groupie who pursues racing drivers.

plural of pit lizard

(law enforcement, automotive) A technique in which a pursuing car bumps the rear fender of a pursued car, causing it to spin out, in order to terminate a car chase.

plural of PIT maneuver