metapterygium
/ˌmɛtəptəˈrɪdʒɪəm/Ichthyol.
noun
The prominent posterior cartilage at the base of the pectoral (and sometimes pelvic) fin in certain cartilaginous fishes.
Origin
Late 19th century; earliest use found in American Naturalist. From German Metapterygium (C. Gegenbaur Grundzüge der Vergleichenden Anatomie (ed. 2) 684) from meta- + ancient Greek πτερύγιον.
- product moment
- product of inertia
- product of mobility
- productor
- product placement
- product recall
- productress
- produit net
- proegumenal
- proegumenic
- proem
- proembryo
- proembryonic
- proemial
- proemially
- proemium
- proenkephalin
- proenzyme
- proepimeron
- proepisternum
- proerythroblast
- proestrous
- proestrum
- pro-estrus
- pro et con