the spraying of liquid fuel into the cylinders or combustion chambers of an engine.
Origin of fuel injection
First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a system for introducing atomized liquid fuel under pressure directly into the combustion chambers of an internal-combustion engine without the use of a carburettor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012