Medical Term
sperm
also: sperms
the mature male reproductive CELL or GAMETE . It has a head with the HAPLOID nucleus containing half the CHROMOSOME number and an acrosome (a structure that aids penetration of the egg). Behind the head comes a midpiece with energy-producing MITOCHONDRIA , and then a long tail that propels it forward. A few millilitres of SEMEN is ejaculated during intercourse, containing many millions of sperm.
Source: mediLexicon corpus · slug
sperm