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noun B2 Upper-Intermediate Common

injection

ihn-JEHK-shuhn
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Injection (noun) means the act of putting a liquid, especially medicine, into the body with a needle, or the dose given that way. Example: “The nurse said the injection would only sting for a second.”

noun
1
The act of putting a liquid, especially medicine, into the body with a needle, or the dose given that way.
"The nurse said the injection would only sting for a second."
"The doctor gave her a flu injection."
"He was terrified of injections as a child."
2
A sudden addition of money or resources into something.
"The village hall got a welcome injection of funds that paid for a new roof."
"A fresh injection of energy helped the tired team finish the project."
"The struggling airline received a much-needed cash injection from investors."
3
In computing, the malicious insertion of code into a program or system.
"Developers must check user input carefully to prevent injection attacks."
"The security team found an injection flaw in the login form and fixed it quickly."
"The website was vulnerable to a SQL injection attack."

How to use injection

Learner’s notes

In plain EnglishA shot of medicine, a sudden boost of funding, or (in tech) malicious code slipped into a system.

Easily confused with
Common pairings
flu injection cash injection SQL injection fuel injection
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Word forms

Plural
injections
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Fill the gap

Can you complete this real example?

The nurse said the _____ would only sting for a second.

Etymology

From Latin iniectio, "a throwing in," from inicere, "to throw into."

Origin: Latin

Related words

Rhymes for injection

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Frequently asked questions

What does “injection” mean?
The word “injection” means the act of putting a liquid, especially medicine, into the body with a needle, or the dose given that way. In plain terms, a shot of medicine, a sudden boost of funding, or (in tech) malicious code slipped into a system.
How do you pronounce “injection”?
“Injection” is pronounced ihn-JEHK-shuhn (/ɪnˈd͡ʒɛk.ʃən/ in IPA).
How do you use “injection” in a sentence?
Here is “injection” used in a sentence: “The doctor gave her a flu injection.”
What part of speech is “injection”?
“Injection” is a noun.
Where does the word “injection” come from?
The word “injection” comes from Latin. From Latin iniectio, "a throwing in," from inicere, "to throw into.".
Is “injection” a common word?
“Injection” is a fairly common word in modern English, usually learned at around the B2 level.
How many meanings does “injection” have?
“Injection” has 3 distinct senses listed in this dictionary. The most common is: the act of putting a liquid, especially medicine, into the body with a needle, or the dose given that way.
What is the difference between an injection and a vaccine?
An injection is the method of delivering a liquid into the body with a needle, while a vaccine is a substance that builds immunity to a disease. A vaccine is often given by injection, but not all injections are vaccines.
What is the difference between an injection and an infusion?
An injection delivers a dose of liquid quickly through a needle, while an infusion drips fluid into the body slowly over a longer period, usually through a drip. Injections are brief; infusions are gradual.
What is a cash injection in finance?
In a financial context, an 'injection' is a sudden addition of money or resources into something, as in 'a cash injection'. It suggests a boost intended to stimulate or support an organization or economy.
What is code injection in computing?
In computing, 'injection' refers to the malicious insertion of code into a program or system, as in 'SQL injection'. Attackers use it to make software carry out commands its designers never intended.

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