injection

noun
in·​jec·​tion | \ in-ˈjek-shən How to pronounce injection (audio) \

Definition of injection

1a : 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.
See More

Recent Examples on the Web

As with all skin injection procedures, there is a risk of infection. Vogue, "Celebrity Manicurist Deborah Lippmann on Beauty, Aging, and the Product That Changed her Relationship With her Hands," 1 Apr. 2019 Troy Clark received lethal injection Wednesday for torturing and drowning an East Texas woman in his bathtub and then stuffing her body into a barrel. Fox News, "Texas inmate executed for 2000 killing of girlfriend," 28 Sep. 2018 This was far from standard fare in a state that has legalized firing squads when lethal injections aren’t available. Nick Tabor, Daily Intelligencer, "What If Prosecutors Wanted to Keep People Out of Prison?," 27 Mar. 2018 The new law says that inmates can choose nitrogen hypoxia over lethal injection. Mike Cason, AL.com, "Alabama's new method of execution has never been tried," 26 Mar. 2018 Shares of Asiana Airlines surged 30% Monday, the maximum daily increase allowed in South Korea, as investors cheered the prospect of a cash injection for the struggling business and a diminished role for patriarch Park Sam-koo and his family. ... Kwanwoo Jun And Na-young Kim, WSJ, "South Korea’s Asiana Airlines Plans to Sell Stake to Appease Creditors," 15 Apr. 2019 One of the risks with using this product is unintentional injection into a blood vessel. Vogue, "Celebrity Manicurist Deborah Lippmann on Beauty, Aging, and the Product That Changed her Relationship With her Hands," 1 Apr. 2019 Other patients may opt for Botox injections into the vocal cord (through the neck), which weakens the muscles and prevents them from spasming so tightly. Sarah Jacoby, SELF, "Selma Blair Reveals Her MS Led to Spasmodic Dysphonia," 27 Feb. 2019 Insulin without injections Several projects aim to give needle relief to the country’s 30 million diabetes sufferers. Mike Feibus, USA TODAY, "Afraid of needles? These start-ups are working on alternatives," 8 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'injection.' 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 injection

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

Keep scrolling for more

Learn More about injection

Statistics for injection

Last Updated

23 May 2019

Look-up Popularity

Time Traveler for injection

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

See more words from the same century

Keep scrolling for more

More Definitions for injection

injection

noun

English Language Learners Definition of injection

: the act or process of forcing a liquid medicine or drug into someone or something by using a special needle
: the act or process of forcing a liquid into something
: the addition of something (such as money) that is needed to support something

injection

noun
in·​jec·​tion | \ in-ˈjek-shən How to pronounce injection (audio) \

Kids Definition of injection

: an act or instance of forcing a fluid (as a medicine) into a part of the body by using a special needle Insulin can be given by injection.

injection

noun
in·​jec·​tion | \ in-ˈjek-shən How to pronounce injection (audio) \

Medical Definition of injection

1a : 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

Keep scrolling for more

More from Merriam-Webster on injection

Rhyming Dictionary: Words that rhyme with injection

Spanish Central: Translation of injection

Nglish: Translation of injection for Spanish Speakers

Britannica English: Translation of injection for Arabic Speakers

Britannica.com: Encyclopedia article about injection

Comments on injection

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

WORD OF THE DAY

one that collects or salvages junk

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Citation

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

TAKE THE QUIZ
Love words? Need even more definitions?

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