Gamete

[Sarah]

A sexual cell or germ cell; a conjugating cell which uniteswith another of like or unlike character to form a new individual. InBot., gamete designates esp. the similar sex cells of the lowerthallophytes which unite by conjugation, forming a zygospore. Thegametes of higher plants are of two sorts, sperm (male) and egg(female); their union is called fertilization, and the resultingzygote an oöspore. In Zoöl., gamete is most commonly used of thesexual cells of certain Protozoa, though also extended to the germcells of higher forms.

[Sarah]

gamete
Cell that functions in sexual reproduction by merging with another gamete to form a zygote.
In higher organisms, gametes are of two distinct types: large immobile ones known as eggs or egg cells and small ones known as sperm. They come together at fertilization. In some lower organisms the gametes are all the same, or they may belong to different mating strains but have no obvious differences in size or appearance.