Organism Function
orgasm Audio
or·gasm [ awr-gaz-uhm ]
Subclass of:
Reproduction
Etymology:
Greek orgaein = to swell or to be lustful
This Greek root was also applied to the swelling of the abdomen in pregnancy.
Definitions related to orgasm:
  • The climax of sexual excitement in either humans or animals.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The final part of the sex act, which involves contraction of sexual organs and a sudden release of endorphins, leading to a feeling of pleasure. In males, orgasm usually occurs with release of semen.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • The height of sexual excitement, consisting of a series of involuntary contractions of the muscles of the genitals, lower pelvis, and anus, accompanied by strong feelings of pleasure.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • The series of pleasurable, rhythmic muscle contractions that mark the peak of sexual arousal and the release of muscle tension.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
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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.