(automotive, aviation) The process of squirting a small amount of water, in the form of a fine spray, into the air/fuel mixture going into a gasoline piston engine, in order to cool the engine cylinders, and, thereby, reduce detonation or knocking in high performance engines, especially when using a high compression ratio.

plural of booster injection

(space travel) A maneuver that moves a spacecraft from orbit around the Earth onto a trajectory towards the Moon.

(space travel) A manoeuvre in which a spacecraft leaves the orbit of a moon or other planet and travels to orbit around the Earth.

A medically supervised facility providing a hygienic environment in which people can consume illicit recreational drugs intravenously, to avoid drug problems such as disease and overdose.

plural of supervised injection site

plural of trans-Mars injection

plural of hot-beef injection

(slang, vulgar) penetrative sexual intercourse

plural of hot beef injection