| 释义 |
al·e·thop·ter·is
\ˌaləˈthäptərə̇s\ noun
Usage: capitalized
Etymology: New Latin, from Greek alētho- (from alēthēs true) + New Latin -pteris
: a genus of large fossil seed ferns represented by abundant remains in Carboniferous coal measures and having large bipinnate to tripinnate fronds with the thick pinnules being inserted on the rachis by a broad decurrent base
• al·e·thop·ter·oid \|alə|thäptəˌrȯid\ adjective |