(US) An area where car parking is not allowed, and where illegally parked cars will be removed by tow truck.

(aviation) The top of the Earth's atmosphere, from 50,000 ft (the start of the stratosphere) and up (to the edge of the exosphere at 1000 mi); where the effects of exposure to the environment on human life is similar to that of exposure to space; it being physiologically incompatible with human life.

(programming) In JavaScript, the lines of code preceding the declaration of a variable.

(physiology, neuroscience) An area of the medulla oblongata, located in the area postrema, that receives inputs from blood-borne drugs or hormones, and communicates with other structures in the vomiting center to initiate vomiting.

plural of temporal dead zone

plural of upper leaf zone

(American football) an infraction in which a football player, on defense, gets into or crosses the neutral zone during the snap, causing an offensive player to false start. The penalty is against the defense, not the offense. It is a 5 yard penalty.

An area in which the local or regional authorities have banned nuclear weapons and nuclear power stations.

a very pure form of crystalline silicon, made by vertical zone melting

The temperate zone between the Antarctic Circle and the Tropic of Capricorn.