seed fern seed feed cup • seed fish · · · Info · Definitions · Synonyms · Characters · · seed fern · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae). Synonyms: seed fern, pteridosperm. · · Noun Definition 1 Synonyms · · · pteridosperm · · Synonym 1 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073