epididymosome

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noun

A small, membranous vesicle, within the epididymal lumen, in which spermatozoa acquire membrane proteins.

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Meanings

nounepididymosome (plural epididymosomes)

plural epididymosomes

  1. A small, membranous vesicle, within the epididymal lumen, in which spermatozoa acquire membrane proteins.

    Epididymosomes are mainly concerned with the transfer of various proteins that lack signal sequences to spermatozoa where the proteins are GPI anchored.

    2015, Shio Kumar Singh, Mammalian Endocrinology and Male Reproductive Biology, page 135

Origin

From epididymo- + -some.

Full word history & related roots →
Cite this entry
APA

epididymosome. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/epididymosome

MLA

“epididymosome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/epididymosome. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “epididymosome,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/epididymosome.

Source: epididymosome on Wiktionary, CC BY-SA 4.0.