| 释义 |
cosmoid
cosmoid (ˈkɒzmɔɪd) adj (Zoology) (of the scales of coelacanths and lungfish) consisting of two inner bony layers and an outer layer of cosmine[C20: from cosm(ine) + -oid]cosmoid
cosmoid (of the scales of coelacanths and lungfish) consisting of an outer layer of cosmin (which resembles dentine), a mid-layer of spongy bone and a lower layer of bony lamellae. Compare GANOID, PLACOID. |