| 单词 |
pre-oral |
| 释义 |
pre-oral, præ-, a.|priːˈɔərəl| [f. pre- B. 3 + oral, f. L. ōs, ōr- mouth.] Situated in front of the mouth.
1870Rolleston Anim. Life 106 The prae-oral or so-called ‘supra-oesophageal’ ganglionic mass. 1875Huxley & Martin Elem. Biol. (1877) 130 The labrum and the metasterna are median growths of the sterna of the præoral and post-oral somites. 1893Tuckey tr. Hatschek's Amphioxus 149 This diverticulum..breaks through on the left side of the body with a small opening outwards—the preoral pit. Hence pre-ˈorally adv.
1888Huxley & Martin's Elem. Biol. 184 The three anterior pairs having coalesced preorally to form the brain. |

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