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See more synonyms for inject on Thesaurus.com
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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Origin of inject

1590–1600; < Latin injectus past participle of in(j)icere to throw in, equivalent to in- in-2 + -jec- (combining form of jac- throw) + -tus past participle suffix
Related formsre·in·ject, verb (used with object)un·in·ject·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for injected

insert, interject, add, infuse, implant, instill, vaccinate, include, impregnate, imbue, shoot, inoculate, jab, mainline

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Contemporary Examples of injected

Historical Examples of injected

British Dictionary definitions for injected


verb (tr)
  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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Derived Formsinjectable, adjective

Word Origin for inject

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

Word Origin and History for injected



c.1600, from Latin iniectus "a casting on, throwing over," past participle of inicere "to throw in or on," from in- "in" (see in- (2)) + -icere, comb. form of iacere "to throw" (see jet (v.)). Related: Injectable; injected; injecting.

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Online Etymology Dictionary, © 2010 Douglas Harper

injected in Medicine


  1. Of or relating to a substance introduced into the body.
  2. Of or relating to a blood vessel that is visibly distended with blood.
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  1. To introduce a substance, such as a drug or vaccine, into a body part.
  2. To treat by means of injection.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.