1) Gamete 
1. One of two or more similar cells that conjugate or fuse and subsequently divide, resulting in reproduction. ... 2. A gamete of the same size as the gamete with which it unites. ... Origin: iso-+ G. Gametes or gamete, husband or wife ... (05 Mar 2000) ... 
Type: Term Pronunciation: ī′sō-gam′ēt Definitions: 1. One of two or more similar cells that conjugate or fuse and subsequently divide, resulting in reproduction. 2. A gamete of the same size as the gamete with which it unites.
[n] - either of a pair of conjugating gametes of the same size and structure
noun either of a pair of conjugating gametes of the same size and structure
one of a pair of conjugating gametes, exhibiting no differences in form, size, structure, or sex. Cf. heterogamete.