• Directory
  • Search
  • All results
  • Journals
  • Definitions
Images:
  • Wikimedia
  • Wikimedia
  • Wikimedia
  • Wikimedia
  • Wikimedia
  • Wikimedia
  • Wikimedia
  • human sperm cells
  • sperm
Videos:
View video
11:35
Egg, sperm, and fertilization
Khan Academy
Related terms:
germ cell
ovum
Cell
sperm cell
sperm cell [ spurm sel ]
Subclass of:
Germ Cells
Definitions related to sperm cell:
  • (sperm) The male reproductive cell, formed in the testicle. A sperm unites with an egg to form an embryo.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • (spermatozoa) Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (spermatozoon) The male reproductive cell that is formed in the testicle. A sperm consists of a head, a body, and a tail that provides propulsion.
    NCI
    U.S. National Cancer Institute, 2021
  • (mature sperm cell) Definitive germ cell of the male sex.
    Foundational Model of Anatomy
    University of Washington, 2017
  • Sperm, male reproductive cell, produced by most animals. With the exception of nematode worms, decapods (e.g., crayfish), diplopods (e.g., millipedes), and mites, sperm are flagellated; that is, they have a whiplike tail. In higher vertebrates, especially mammals, sperm are produced in the testes....
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
Return to OpenMD Medical Dictionary > S
Try this search on: Farlex, Merriam-Webster, Oxford Dictionary, or Wordnik

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.

  • About
  • Feedback
  • Guides
  • Terms
© 2026 OpenMD
The content on this site is NOT a substitute for professional medical advice or diagnosis. Always seek the advice of your doctor or health care provider.