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incisor

n. [解剖] 切牙；门牙

1、[解剖]门齿

门齿 (Incisor) 是异齿型哺乳类植物的第一类牙齿。不少草食性和杂食性的哺乳类，诸如室内安排原料类和马匹，均需以门齿来切断食物。

2、门牙

... 牙齿(Teeth) 门牙(Incisor teeth): 前臼齿(Premolar teeth)及臼齿(Molar teeth): ...

3、[解剖]切牙

...切牙（牙的形态特点和功能特性分类：根据牙的形态特点和功能特性，恒牙分为切牙、尖牙、前磨牙和磨牙四组。 1.切牙（incisor）位于口腔前部，口腔内上、下、左、右共8个切牙|育，牙冠由唇面、舌面、近中面和远中面四个轴面和一个切嵴组成。

4、两颗门牙

谢晋遗孀徐大雯诈欺执法的火器打落(Knocked out)了他的“两颗门牙(Incisor)”。恶口永远不要出自于我们的口中，不管他有多坏，有多恶。

lateral incisor侧切牙

mandibular incisor下颌切牙;下颌恒切牙

impacted incisor阻生切牙

upper incisor上颌切牙;上中切牙点

valve incisor瓣膜切开刀

permanent incisor恒切牙

literal incisor侧门齿;侧门齿英语

Rat incisor大鼠切牙

incisor pulps切牙牙髓

医药科学

生物学

n.a tooth for cutting or gnawing; located in the front of the mouth in both jaws

1.
N-COUNT（可数名词） Your incisors are the teeth at the front of your mouth that you use for biting into food. 门牙; 门齿

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