Gnetaceae gneissy • gnetaceous · · · Info · Definitions · Characters · · Gnetaceae · · Text Latin · · Script 9 · · Length Definitions · · · (noun) plants having small unisexual flowers and fleshy or winged fruit: in some classifications includes the genera Ephedra and Welwitschia as well as genus Gnetum. Synonyms: family Gnetaceae. · · Noun Definition 1 Characters · · G latin capital letter g U+0047 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 n latin small letter n U+006E t latin small letter t U+0074