megagametophyte megagamete • megajoule · · · Info · Definitions · Characters · · megagametophyte · · Text Latin · · Script 15 · · Length Definitions · · · (noun) the female gametophyte produced by the megaspore of a plant that produces both microspore and megaspores. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074 y latin small letter y U+0079