inject

¹ American  

[in-jekt] / ɪnˈdʒɛkt /

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.

3. to introduce arbitrarily or inappropriately; intrude.

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

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inject. ² American  

abbreviation

1. (in prescriptions) an injection.

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inject British  

/ ɪnˈdʒɛkt /

verb

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

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

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

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Other Word Forms

• injectable adjective
• reinject verb (used with object)
• uninjected adjective

Etymology

Origin of inject¹

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; in- ²

Origin of inject.²

From the Latin word injectiō

Example Sentences

These are tiny, syringe-like structures that allow bacteria to inject their own proteins directly into human cells.

From Science Daily • Mar. 27, 2026

“Certainly, the Iran developments are going to inject new challenges,” he said.

From MarketWatch • Mar. 19, 2026

Despite the network’s attempts to inject new life into the franchise with senior-citizen-focused spinoffs “The Golden Bachelor” and “The Golden Bachelorette,” viewership still declined.

From The Wall Street Journal • Mar. 19, 2026

Aziz has also promised to inject fresh investment into NMG as it scales up its digital platforms to meet shifting media consumption trends.

From BBC • Mar. 13, 2026

Volcanoes inject debris into the atmospheres of the Earth and Io.

From "Cosmos" by Carl Sagan

Related Words

• add
• implant
• infuse
• insert
• instill
• interject