in·​ject | \ in-ˈjekt How to pronounce inject (audio) \
injected; injecting; injects

Definition of inject

transitive verb

1a : to introduce into something forcefully inject fuel into an engine
b : to force a fluid into (as for medical purposes) inject a drug into the bloodstream
2 : to introduce as an element or factor in or into some situation or subject condemning any attempt to inject religious bigotry into the campaignCurrent Biography

Keep scrolling for more

Other Words from inject

injectable \ in-​ˈjek-​tə-​bəl How to pronounce injectable (audio) \ adjective or noun
injector \ in-​ˈjek-​tər How to pronounce injector (audio) \ noun

Examples of inject in a Sentence

She told a few jokes to inject a little humor into her speech. We need to inject some life into this party.

Recent Examples on the Web

Meanwhile, in the decimated lab, Bernard recovers somewhat after Elsie injects him with cortical fluid., "Westworld Season 2, Episode 4 Recap: "The Riddle Of The Sphinx"," 14 May 2018 To test the effect of combining it with opioids, Bilsky and colleagues have been dosing mice with SR 21502 and observing their behavior after injecting them with a chemical that induces morphine withdrawal. Jonathon Keats, Discover Magazine, "Building a Better Painkiller," 11 May 2018 According to a criminal complaint obtained by WBAY, police say Baxter was living with several juvenile runaways and injected them with methamphetamine daily in October. Scott Berson, charlotteobserver, "Wisconsin woman injected teens with meth and forced man into prostitution, police say | Charlotte Observer," 2 May 2018 Known for his sometimes theatrical behavior, Traywick injected himself with an untested herpes treatment earlier this year before an audience at an Austin, Texas convention in February, according to the Mirror. William Thornton,, "Biohacker CEO Aaron Traywick, Montevallo grad, found dead," 1 May 2018 The treatments, which cost each woman $5,000, involved harvesting stem cells from their body fat, separating them in a centrifuge, and injecting them into their eyes. Ron Hurtibise,, "U.S. senator presses for answers about Sunrise-based stem cell clinic," 26 Apr. 2018 Consider a smart contact lens that is injected directly into the eyeball—a concept that has already been patented and is in active development. Andrea M. Matwyshyn, WSJ, "The ‘Internet of Bodies’ Is Here. Are Courts and Regulators Ready?," 12 Nov. 2018 On December 7, 1982, the first execution by injection took place in Texas, killing Charles Brooks, Jr., who was injected with the drug cocktail. Abdullah Shihipar, Teen Vogue, "Lethal Injection Drugs and the Death Penalty, Explained," 30 Oct. 2018 Clark was pronounced dead at 6:36 p.m. Wednesday — 21 minutes after a lethal dose of the sedative pentobarbital was injected in his body. Katherine Lam, Fox News, "Texas inmate insists he didn't murder ex-roommate before execution: 'But, hey, whatever makes you happy'," 27 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inject.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of inject

1601, in the meaning defined at sense 1a

History and Etymology for inject

Latin injectus, past participle of inicere, from in- + jacere to throw — more at jet

Keep scrolling for more

Learn More about inject

Statistics for inject

Last Updated

26 Mar 2019

Look-up Popularity

Time Traveler for inject

The first known use of inject was in 1601

See more words from the same year

Keep scrolling for more

More Definitions for inject



English Language Learners Definition of inject

: to force a liquid medicine or drug into someone or something by using a special needle
: to force (a liquid) into something
: to add (something) to something : to introduce (a particular quality) into something


in·​ject | \ in-ˈjekt How to pronounce inject (audio) \
injected; injecting

Kids Definition of inject

1 : to force a fluid (as a medicine) into by using a special needle
2 : to introduce as something needed or additional He tried to inject confidence into his brother.
in·​ject | \ in-ˈjekt How to pronounce inject (audio) \

Medical Definition of inject

1 : to force a fluid into (a vessel, cavity, or tissue) for preserving, hardening, or coloring structures
2 : to introduce (as by injection or gravity flow) a fluid into (a living body) especially for the purpose of restoring fluid balance, treating nutritional deficiencies or disease, or relieving pain also : to treat (an individual) with injections

Keep scrolling for more

More from Merriam-Webster on inject

Rhyming Dictionary: Words that rhyme with inject

Thesaurus: All synonyms and antonyms for inject

Spanish Central: Translation of inject

Nglish: Translation of inject for Spanish Speakers

Britannica English: Translation of inject for Arabic Speakers

Comments on inject

What made you want to look up inject? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!