microgamete Syllabification: (mi·cro·gam·ete)Pronunciation: /ˌmīkrōˈgamˌēt, -gəˈmēt/Definition of microgamete noun Biology (especially in protozoans) the smaller of a pair of conjugating gametes, usually regarded as male. microgamete in other Oxford dictionaries Definition of microgamete in the British & World English dictionary