A mature male gamete or reproductive cell; sperm cell. It is microscopic in size, looks like a translucent tadpole, and has a flat elliptical head containing a spherical center section, and a long tail by which it propels itself with a vigorous lashing movement. Spermatozoa are produced in the seminiferous tubules of the testes.


Want a discount? Become a member, sign up for a subscription plan.