injection

[ in-jek-shuhn ]

See synonyms for injection on Thesaurus.com

noun

the act of injecting.
something that is injected.

a liquid injected into the body, especially for medicinal purposes, as a hypodermic or an enema.
state of being hyperemic or bloodshot.
Mathematics. a one-to-one function.
Also called insertion. Aerospace. the process of putting a spacecraft into orbit or some other desired trajectory.

Origin of injection

First recorded in 1535–45, injection is from the Latin word injectiōn- (stem of injectiō). See inject, -ion

Other words from injection

post·in·jec·tion, adjective
re·in·jec·tion, noun
su·per·in·jec·tion, noun

Words Nearby injection

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use injection in a sentence

For instance, you can see blocked SQL injections, see where the injection attempts came from and act to prevent further attempts.
Datadog to acquire application security management platform Sqreen | Romain Dillet | February 12, 2021 | TechCrunch
The Canadian couple fined for flying to a remote, largely indigenous community in Yukon territory and allegedly posing as hotel workers to get their injections.
Don’t hate the vaccine tourists, hate the vaccine game | Jen Kirby | February 12, 2021 | Vox
At 62, she’s too young to qualify for the injection herself.
It’s Prague on the Potomac, as we wearily wait for a shot at the vaccine | Petula Dvorak | February 8, 2021 | Washington Post
Another injection, made by AstraZeneca using an engineered cold virus, is around 75% effective.
The next act for messenger RNA could be bigger than covid vaccines | David Rotman | February 5, 2021 | MIT Technology Review
Some people had fever, fatigue or pain at the injection site after inoculation, but “the vast majority of people felt nothing at all,” Mammen said.
One-shot COVID-19 vaccine is effective against severe disease | Tina Hesman Saey | January 29, 2021 | Science News

In 2006, the firm presided over a routine steam-injection procedure known as “well stimulation.”
The Fiery Underground Oil Pit Eating L.A. | Geoff Manaugh | December 6, 2014 | THE DAILY BEAST
Death by pills or lethal injection might be unnatural, but she believes that declining nourishment and medications is not.
The Nurse Coaching People Through Death by Starvation | Nick Tabor | November 17, 2014 | THE DAILY BEAST
At least 15 children, and perhaps many more, have died after receiving an injection thought to be the measles vaccine.
Measles Vaccine Mix-Up Kills Dozens of Syrian Children | Kent Sepkowitz | September 18, 2014 | THE DAILY BEAST
Within 24 hours after injection, a typical horse loses 35 to 100 pounds, mostly water weight.
How Kentucky Will Save Horse Racing From Itself | Jonathan Miller | September 4, 2014 | THE DAILY BEAST
Fretland had only observed one other lethal injection, two years prior in Oklahoma.
Lifting the Curtain on Oklahoma's Botched Lethal Injection | Caitlin Dickson | August 29, 2014 | THE DAILY BEAST
The phloridzin test consists in the hypodermic injection of a small quantity of phloridzin.
A Manual of Clinical Diagnosis | James Campbell Todd
I tried to condense the steam by the cold sides of the condenser, without using injection-water.
Life of Richard Trevithick, Volume II (of 2) | Francis Trevithick
The doctors, with the exception of my friend Chapelain, prefer an injection, and it is my duty to submit to their wishes.
Catherine de' Medici | Honore de Balzac
The chief physician held the king's head, and Ambroise made the injection into the ear.
Catherine de' Medici | Honore de Balzac
For instance, a hypodermic injection of paraffine will puff up the skin at the desired spot.
The Extraordinary Adventures of Arsene Lupin, Gentleman-Burglar | Maurice Leblanc

British Dictionary definitions for injection

injection

/ (ɪnˈdʒɛkʃən) /

noun

fluid injected into the body, esp for medicinal purposes
something injected

the act of injecting
- the act or process of introducing fluid under pressure, such as fuel into the combustion chamber of an engine
- (as modifier): injection moulding
maths a function or mapping for which f(x) = f(y) only if x = y: See also surjection, bijection

Derived forms of injection

injective, adjective

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

Scientific definitions for injection

injection

[ ĭn-jĕk′shən ]

A substance that is introduced into a organism, especially by means of a hypodermic syringe, as a liquid into the veins or muscles of the body.
A function that maps each member of one set (the domain) to exactly one member of another set (the range). Compare bijection surjection.

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