释义 |
postorbital, a. (n.) Anat. and Zool.|-ˈɔːbɪtəl| [f. post- B. 2 + orbital.] Situated behind, or on the hinder part of, the orbit of the eye: applied esp. to a process (usually) of the frontal bone, which forms a separate bone in some reptiles. (Cf. postfrontal.) Also ellipt. as n. a. The postorbital bone or process. b. A scale behind the eye in snakes (= postocular b).
1835–6Todd's Cycl. Anat. I. 274/2 The post-orbital processes are most developed in the Parrots. 1866Owen Anat. Vertebr. I. 103 The bones of the dermoskeleton are—The Supratemporals..The Postorbitals..The Superorbitals [etc.]. 1882W. K. Parker in Trans. Linn. Soc. II. iii. 167 Besides this antorbital rudiment, there is a large postorbital cartilage. |