Organism Function
ejaculation Audio
e·jac·u·la·tion [ ih-jak-yuh-ley-shuhn ]
Subclass of:
Reproduction
Definitions related to ejaculation:
  • A sudden discharge of a fluid from a duct; often used to describe the expulsion of seminal fluid from the urethra of the penis during orgasm.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The emission of SEMEN to the exterior, resulting from the contraction of muscles surrounding the male internal urogenital ducts.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The release of semen through the penis during orgasm.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Ejaculation, the release of sperm cells and seminal plasma from the male reproductive system. Ejaculation takes place in two phases: in the first, or emission, stage, sperm are moved from the testes and the epididymis (where the sperm are stored) to the beginning of the urethra, a hollow tube...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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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.