#sperm_cell__spermcell__sperm__spermatozoon__spermatozoan  the male reproductive cell; the male gamete
  supertype:  #gamete  a mature sexual reproductive cell having a single set of unpaired chromosomes
  part of:  #semen  #male_reproductive_system
  part:  #flagellum  long lash-like appendage used for locomotion (e.g., in sperm cells and some protozoa)
  part:  #acrosome  a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg

No statement uses or specializes #sperm_cell; click here to add one.