injection

noun

in·​jec·​tion in-ˈjek-shən How to pronounce injection (audio)
1
a
: an act or instance of injecting
b
: the placing of an artificial satellite or a spacecraft into an orbit or on a trajectory
also : the time or place at which injection occurs
2
: something (such as a medication) that is injected
3
: a mathematical function that is a one-to-one mapping compare bijection, surjection

Examples of injection in a Sentence

The medicine cannot be taken orally; it must be given by injection. an injection of a painkiller The struggling company needed an injection of cash.
Recent Examples on the Web Texas Also on Tuesday, Texas death row inmate Travis Mullis was executed by lethal injection. Sean Murphy, Los Angeles Times, 28 Sep. 2024 Any changes made to the lethal injection protocol were not documented publicly. Emily Mae Czachor, CBS News, 26 Sep. 2024 Their statistics show face swap injection attacks increased by a staggering 704 percent in the second half of 2023 compared to the first half. Frank McKenna, Forbes, 26 Sep. 2024 Five states still use a firing squad if no lethal injection drugs are available, including Mississippi, Oklahoma, Utah, South Carolina and Idaho, which reinstated firing squads last year. Drake Bentley, Journal Sentinel, 26 Sep. 2024 See all Example Sentences for injection 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'injection.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of injection was in the 15th century

Dictionary Entries Near injection

Cite this Entry

“Injection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/injection. Accessed 11 Oct. 2024.

Kids Definition

injection

noun
in·​jec·​tion in-ˈjek-shən How to pronounce injection (audio)
1
: an act or instance of injecting
2
: something (as a medical drug) that is injected

Medical Definition

injection

noun
in·​jec·​tion in-ˈjek-shən How to pronounce injection (audio)
1
a
: the act or an instance of injecting a drug or other substance into the body
b
: a solution (as of a drug) intended for injection (as by catheter or hypodermic syringe) either under or through the skin or into the tissues, a vein, or a body cavity
c
: an act or process of injecting vessels or tissues
also : a specimen prepared by injection
2
: the state of being injected : congestion see circumcorneal injection
Last Updated: - Updated example sentences
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