Definition of acrosome in English:

acrosome

noun

Biology
  • A membrane-bound, darkly staining, granular structure surrounding the anterior end of the nucleus in a spermatozoon, containing enzymes that assist in the penetration of the ovum.

Origin

Late 19th century. From acro- + -some, after German Akrosoma.

Pronunciation:

acrosome

/ˈakrə(ʊ)səʊm/