injection

[ in-jek-shuhn ]

noun

1. the act of injecting.
2. something that is injected.
3. a liquid injected into the body, especially for medicinal purposes, as a hypodermic or an enema.
4. state of being hyperemic or bloodshot.
5. Mathematics. a one-to-one function.
6. Also called insertion. Aerospace. the process of putting a spacecraft into orbit or some other desired trajectory.

injection

/ ɪnˈdʒɛkʃən /

noun

1. fluid injected into the body, esp for medicinal purposes
2. something injected
3. the act of injecting
4. 1. the act or process of introducing fluid under pressure, such as fuel into the combustion chamber of an engine
   2. ( as modifier )

      injection moulding

5. maths a function or mapping for which f( x ) = f( y ) only if x = y See also surjection bijection

injection

/ ĭn-jĕk′shən /

1. 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.
2. A function that maps each member of one set (the domain) to exactly one member of another set (the range).
3. Compare bijection

Derived Forms

• inˈjective, adjective

Other Words From

• postin·jection adjective
• rein·jection noun
• super·in·jection noun

Word History and Origins

Origin of injection¹

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

Example Sentences

For instance, you can see blocked SQL injections, see where the injection attempts came from and act to prevent further attempts.

From 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.

From Vox

At 62, she’s too young to qualify for the injection herself.

From Washington Post

Another injection, made by AstraZeneca using an engineered cold virus, is around 75% effective.

From 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.

From Science News

In 2006, the firm presided over a routine steam-injection procedure known as “well stimulation.”

From The Daily Beast

Death by pills or lethal injection might be unnatural, but she believes that declining nourishment and medications is not.

From The Daily Beast

At least 15 children, and perhaps many more, have died after receiving an injection thought to be the measles vaccine.

From The Daily Beast

Within 24 hours after injection, a typical horse loses 35 to 100 pounds, mostly water weight.

From The Daily Beast

Fretland had only observed one other lethal injection, two years prior in Oklahoma.

From The Daily Beast

The phloridzin test consists in the hypodermic injection of a small quantity of phloridzin.

From Project Gutenberg

I tried to condense the steam by the cold sides of the condenser, without using injection-water.

From Project Gutenberg

The doctors, with the exception of my friend Chapelain, prefer an injection, and it is my duty to submit to their wishes.

From Project Gutenberg

The chief physician held the king's head, and Ambroise made the injection into the ear.

From Project Gutenberg

For instance, a hypodermic injection of paraffine will puff up the skin at the desired spot.

From Project Gutenberg

Related Words

• dose
• needle