Meanings
nouneusperm (plural eusperm)
- biologyIn species that exhibit sperm heteromorphism, fertile sperm.
[…] the eusperm (i.e. the fertilizing spermatozoa) are filamentous cells with a tapered, tubular, terminal acrosome, an extremely elongate nucleus, a cylindrical sometimes spiral midpiece formed by two to six radially adpressed mitochondria […]
2009, Daniel H. Shain, Annelids in Modern Biology, page 322
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Cite this entry
APA
eusperm. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/eusperm
MLA
“eusperm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/eusperm. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “eusperm,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/eusperm.
Source: eusperm on Wiktionary, CC BY-SA 4.0.