"infection" in the noun sense
1. infection
the pathological state resulting from the invasion of the body by pathogenic microorganisms
2. infection
phonetics) the alteration of a speech sound under the influence of a neighboring sound
3. infection
medicine) the invasion of the body by pathogenic microorganisms and their multiplication which can lead to tissue damage and disease
4. infection, contagion, transmission
an incident in which an infectious disease is transmitted
5. contagion, infection
the communication of an attitude or emotional state among a number of people
"a contagion of mirth"
"the infection of his enthusiasm for poetry"
6. infection
moral corruption or contamination
"ambitious men are led astray by an infection that is almost unavoidable"
7. infection
international law) illegality that taints or contaminates a ship or cargo rendering it liable to seizure
Source: WordNet® (An amazing lexical database of English)
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