progymnosperm proguardian • progymnospermic · · · Info · Definitions · Characters · · progymnosperm · · Text Latin · · Script 13 · · Length 4 · · Syllables Definitions · · · (noun) an ancestral fossil type from which modern gymnosperms are thought to have derived. · · Noun Definition 1 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 y latin small letter y U+0079