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

“A big part of those people, by the way, don’t want an injection. They’re waiting for the pill. So going into expanding the market has been very, very important.”

From Barron's

A round of IVF in the UK was followed by more rounds abroad - a process of anxious appointments, medications and injections.

From BBC

MariTide’s potential for monthly or quarterly dosing and low incidence of nausea and vomiting differentiate it from existing weekly GLP1 injections.

From Barron's

A pill is easier than an injection, and it doesn’t need to be refrigerated, but there are also questions about the step-heavy administration process and its effectiveness in the real world.

From MarketWatch

“It’s injections of capital into the markets with the purpose of driving spreads down.”

From MarketWatch

Related Words

• dose
• needle