injection

American  

[in-jek-shuhn] / ɪnˈdʒɛk ʃən /

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.

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injection British  

/ 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

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injection Scientific  

/ 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 surjection

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Other Word Forms

• injective adjective
• postinjection adjective
• reinjection noun
• superinjection noun

Etymology

Origin of injection

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

Example Sentences

Stoke Therapeutics provided the drug that is given as a lower back injection to travel in spinal fluid to the brain, where it is needed.

From BBC

People with T1D must closely monitor their glucose and rely on insulin injections to survive.

From Science Daily

The gene-therapy developer recently had its Huntington’s therapy—a one-time injection delivered directly into the brain—denied accelerated approval in what the company called a dramatic reversal of guidance from the FDA.

From The Wall Street Journal

To be useful, agents have to be given a lot of privileges around private data and communications, and that makes them subject to a new class of cyberattack called prompt injection.

From Barron's

It was one of the reasons that the deactivation injection was now required as soon as you were done with your Glitching career.

From Literature

Related Words

• dose
• needle