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infection definition


This page has 8 definitions of infection with English translations in 4 languages. Infection is a noun. Also define these 10 related words and terms: pathology, infect, microorganisms, host, suppuration, infection, stench, stink, puanteur, and pestilence.

English infection definition


From Old French infection, from Vulgar Latin *infectiō.



infection (countable and uncountable, plural infections)

  1. (pathology) The act or process of infecting.
    • Pathology definition
      The branch of medicine concerned with the study of the nature of disease and its causes, processes, development, and consequences. (1 of 3 pathology definitions)
    • Infect definition
      To bring (the body or part of it) into contact with a substance that causes illness (a pathogen), so that the pathogen begins to act on the body; (of a pathogen) to come into contact with (a body or body part) and begin to act on it. (1 of 3 infect definitions)
  2. An uncontrolled growth of harmful microorganisms in a host.
    • 2013 June 1, “A better waterworks”, in The Economist[1], volume 407, number 8838, page 5 (Technology Quarterly):
      An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic [] real kidneys [] . But they are nothing like as efficient, and can cause bleeding, clotting and infection—not to mention inconvenience for patients, who typically need to be hooked up to one three times a week for hours at a time.
    • Host definition
      One which receives or entertains a guest, socially, commercially, or officially. (1 of 8 host definitions)
  3. A disease caused by a pathogen.
  4. A visible sign of such a disease, such as the suppuration of a wound.

Derived terms

Related terms


French infection definition


From Old French infection, from Late Latin infectiō.



infection f (plural infections)

  1. (pathology) infection
  2. (informal) stench, stink
    Synonyms: puanteur, pestilence
    • Puanteur definition
      stench; stink



Interlingua infection definition


infection (plural infectiones)

  1. (pathology) The act or process of infecting.

Old French infection definition


Borrowed from Latin *infectiō.


infection f (oblique plural infections, nominative singular infection, nominative plural infections)

  1. (countable) infection.
    • 1377, Bernard de Gordon, Fleur de lis de medecine (a.k.a. lilium medicine), page 172 of this essay:
      la infection va tantost par tout le corps
      the infection travels around the whole body