[ in-jek-ter ]

  1. a person or thing that injects.

  2. Machinery.

    • a device for injecting feedwater into a boiler against high pressure by means of a jet of steam.

    • Also called fuel injector. a mechanism consisting of a pump, valves, and nozzles for spraying fuel into the cylinders of an internal-combustion engine.

Origin of injector

First recorded in 1735–45; inject + -or2

Words Nearby injector Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use injector in a sentence

British Dictionary definitions for injector


/ (ɪnˈdʒɛktə) /

  1. a person or thing that injects

  2. a device for spraying fuel into the combustion chamber of an internal-combustion engine

  1. Also: inspirator a device for forcing water into a steam boiler

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