| 释义 |
▪ I. pterotic, a.1 (n.) Anat.|pt-, təˈrəʊtɪk|
[f. Gr. πτερόν wing + -otic in periotic, pro-otic, etc.]
Applied to a wing-like expansion of the petrosal bone or periotic capsule, occurring in some vertebrates. b. as n. The pterotic bone or expansion.
1870Flower Osteol. Mammalia x. 150 A lamelliform expansion of the upper edge of the periotic (pterotic, Parker) forms part of the lateral wall of the cranium. 1872Mivart Elem. Anat. 106 In Fishes, it appears as a bone projecting at the postero-external angle of the roof of the skull. It is called the pterotic. 1890in Cent. Dict.
▪ II. pteˈrotic, a.2 nonce-wd.
[f. Gr. πτερωτός winged + -ic.]
Winged.
1884Blackmore Tommy Upm. II. vi. 89 A frame of unusual elasticity, partaking rather of the pterotic character. |