| 单词 | 牙槽 |
| 释义 | 〔gum〕The firm connective tissue covered by mucous membrane that envelops the alveolar arches of the jaw and surrounds the bases of the teeth. Also called gingiva 龈，牙床：覆盖着粘膜的坚韧的连接组织，包裹颚上的弓形牙槽及牙根部 也作 gingiva〔thecodont〕Any of various extinct primitive archosaurs of the order Thecodontia of the late Permian and Triassic periods, having teeth in sockets and probably ancestral to the dinosaurs.槽齿类：二迭纪和三迭纪晚期槽齿目几种已灭绝的原始初龙，牙槽中有牙齿并且可能是恐龙的祖先〔alveolar〕Relating to the jaw section containing the tooth sockets:牙槽的：与包含牙床的颚部有关的：〔alveolus〕A tooth socket in the jawbone.牙槽：颚骨处的牙床〔impacted〕Placed in the alveolus in a manner prohibiting eruption into a normal position. Used of a tooth.牙齿长不出的：在牙槽上处于妨碍新牙长在正常位置的。用来描述牙齿 |
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