[ in-jekt ]
See synonyms for inject on
verb (used with object)
  1. to force (a fluid) into a passage, cavity, or tissue: to inject a medicine into the veins.

  2. to introduce (something new or different): to inject humor into a situation.

  1. to introduce arbitrarily or inappropriately; intrude.

  2. to interject (a remark, suggestion, etc.), as into conversation.

Origin of inject

First recorded in 1590–1600; from Latin injectus, past participle of in(j)icere “to throw in,” equivalent to in- “in” + -jec- (combining form of jac- “to throw”) + -tus past participle suffix; see in-2

Other words from inject

  • re·in·ject, verb (used with object)
  • un·in·ject·ed, adjective

Words Nearby inject

Other definitions for inject. (2 of 2)


  1. (in prescriptions) an injection.

Origin of inject.

From the Latin word injectiō Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use inject in a sentence

British Dictionary definitions for inject


/ (ɪnˈdʒɛkt) /

  1. med to introduce (a fluid) into (the body of a person or animal) by means of a syringe or similar instrument

  2. (foll by into) to introduce (a new aspect or element): to inject humour into a scene

  1. to interject (a comment, idea, etc)

  2. to place (a rocket, satellite, etc) in orbit

Origin of inject

C17: from Latin injicere to throw in, from jacere to throw

Derived forms of inject

  • injectable, adjective

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