单词 | pre-opercular |
释义 | pre-opercular, præ-, a. (n.)|priːəʊˈpɜːkjʊlə(r)| [f. pre-opercul-um + -ar1.] Of or pertaining to the pre-operculum. Also absol. or as n. The pre-opercular bone, the pre-operculum.
1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 178 The appendage..consists of four bones; the one articulated to the tympanic pedicle is called ‘preopercular’. 1858Mayne Expos. Lex., Pre-opercular, term applied by Prof. Owen..to the first or proximal segment of the radiated appendage of the tympano-mandibular arch. 1866Owen Vertebr. Anim. I. 105 The preopercular,..runs parallel with, strengthens, and connects together the divisions of the tympanic pedicle. |

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