eusperm

English

Noun

eusperm (plural eusperm)

1. (zoology) In species that exhibit sperm heteromorphism, fertile sperm.
   • 2009, Daniel H. Shain, Annelids in Modern Biology, page 322:

     […] 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 […]

Coordinate terms

• parasperm

Related terms

• eupyrene

Anagrams

• Supreme, presume, supreme, suprême