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Definition of infection

infection

/ɪnˈfɛk.ʃən/
in · fec · tion

Adverb:infectiously
•
Plural:infections
•
Adjective:infectious
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infection Lexical Profile

infection Game Scores & Validity

• noun

1

A pathological condition or illness caused by the invasion and multiplication of disease-causing microorganisms, such as bacteria, viruses, fungi, or parasites, within the tissues of a host organism.

Example

"The doctor prescribed a course of antibiotics to clear up the respiratory infection."


2

The process or state of transmitting a disease, pathogen, or harmful contaminant from one organism or environment to another.

Example

"Thorough handwashing is one of the most effective ways to prevent the spread of infection in hospitals."


3

The rapid spread or communication of an emotion, mood, attitude, or harmful influence from one person or group to others, or the infiltration of a computer system by malicious software.

Example

"The security team isolated the server immediately to contain the malware infection."

Synonyms
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Antonyms
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• Rhymes for infection

Word Origin & Etymology

Borrowed in the late 14th century from Old French infection, from Late Latin infectionem ('a contagious disease, a dyeing'), a noun of action from Latin inficere ('to stain, taint, or spoil'), formed from in- ('into') and facere ('to make or do').

Cite this Entry


Wordmom. (2026). Definition of Infection. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/infection
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