n :  a mature male or female germ cell usu. possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite sex - called also sex cell  ga*met*ic adj ga*met*i*cal*ly adv 
 
 also   
 
Similar sounding terms:  com·e·do  come to  com·mit 
 
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