| 释义 |
postfrontal, a. (n.) Anat. and Zool.|pəʊstˈfrɒntəl|
[f. post- B. 2 + L. frons, front- forehead + -al1.]
a. Situated behind the forehead, or at the back of the frontal bone.
b. Situated in the hinder part of the frontal lobe of the brain.
1852Dana Crust. i. 383 The post-frontal sutures. 1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 189 The post-frontal..region of the skull. 1899Allbutt's Syst. Med. VII. 273 The frontal lobe..must be divided into a prefrontal and a post-frontal area.
B. n. (ellipt. for postfrontal process or bone). The external angular process of the frontal bone, which is situated at the back part of the brim of the orbit of the eye; in some animals (not above birds) found as a distinct bone.
1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 194 The post-frontal..is a moderately long trihedral bone, articulated by its expanded cranial end to the frontal and parietal. Ibid. 206 These characters are retained in the post-frontals as well as in the mastoids of the crocodiles. 1872Mivart Elem. Anat. 101 A bone exists in the skull of osseous Fishes which has often been called the ‘post-frontal’. |
