Pathologic Function
infection Audio
in·fec·tion [ in-fek-shuhn ]
Subclass of:
Diseases (MeSH Category)
Definitions related to infection:
  • The growth of harmful organisms that can cause disease, such as bacteria, in the body.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The invasion of an organism's body tissues by disease-causing agents and their multiplication, as well as the reaction by the host to these organisms and/or toxins that the organisms produce.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.