Definition of infection
1 : the act or result of affecting injuriously
2 : an infective agent or material contaminated with an infective agent
3a : the state produced by the establishment of an infective agent in or on a suitable hostb : a disease resulting from infection
4 : an act or process of infecting; also : the establishment of a pathogen in its host after invasion
5 : the communication of emotions or qualities through example or contact
Examples of infection in a Sentence
Poor hygiene can increase the danger of infection.
The wound has so far remained free of infection.
steps you can take to decrease your computer's risk of infection
Recent Examples of infection from the Web
Less happily, the rate of new infections, though dropping, is not doing so as fast as UNAIDS and its allies had hoped.
Anaedozie said the state’s push began in 2015 after rural Scott County in Indiana began reporting a spike in HIV and hepatitis C infections related to the opioid crisis there.
Treatments — surgery, radiation or hormone therapy — can cause impotence, incontinence, infections and other problems, and sometimes do more harm than the disease ever would.
In an attempt to get clean, Ellis suffered from alcohol withdrawal which resulted in a blood infection, kidney shutdown and heart complications, his family told THR.
All three hospitals scored worse than the national average on MRSA infections in spring 2017.
These include kidney disease, dementia, infection by the antibiotic-resistant superbug C. difficile and other ailments.
The isolation room will allow shelter staff the ability to quarantine and treat cats with upper respiratory infection.
Meanwhile, more than 90 percent of new HIV infections could be prevented by testing and early diagnosis, research shows.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infection.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of infection
INFECTION Defined for English Language Learners
Definition of infection for English Language Learners
: the act or process of infecting someone or something : the state of being infected
: a disease caused by germs that enter the body
INFECTION Defined for Kids
Definition of infection for Students
1 : the act or process of passing on or introducing a germ, illness, or disease to : the state of being infected
2 : any disease caused by germs an ear infection
Medical Definition of infection
3: an act or process of infecting syphilis infection is chiefly venereal; also : the establishment of a pathogen in its host after invasion
Seen and Heard
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