释义 |
WordReference Random House Unabridged Dictionary of American English © 2024pel•y•co•saur (pel′i kə sôr′),USA pronunciation n. - Paleontologyany of a group of large primitive reptiles belonging to the extinct order Pelycosauria, abundant in North America and Europe during the Permian Period, often having a tall spinal sail.
- Neo-Latin Pelycosauria (1878), equivalent. to Greek pelyk-, stem of pélyx wooden bowl, cup (taken as meaning pelvis, parallel to the Neo-Latin sense of Latin pelvis) + -o- -o- + saûr(os) -saur + Neo-Latin -ia -ia; so named from the peculiar form of the ischium in such reptiles
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