Term: spermatozoon (pl spermatozoa)
Literally meaning: “a live and motile seed”
Origin: Anc Greek
σπέρμα(=seed) > σπείρω/spearo (=disperse)
Spermatozoa were first observed in 1677 by Antonie van Leeuwenhoek with a microscope. Leeuwenhoek named them animalcules (litle animals) because it was believed that each sperm contained a well formed but small human.
The male reproductive cell (gamete) that is uniflagellar and motile .