Word · CEFR C1 · Frequency #17754
incisors
门牙；切牙
incisors is the plural of incisor.
核心释义
a front tooth used for cutting or gnawing
- 1.
哺乳动物口腔前部窄刃的牙齿,位于犬齿之间,用于切割；人类每颌有四颗。
A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.
- 2.
用于切割或啃咬的牙齿；位于上下颌的前部
a tooth for cutting or gnawing; located in the front of the mouth in both jaws
哺乳动物口腔前部窄刃的牙齿,位于犬齿之间,用于切割；人类每颌有四颗。；用于切割或啃咬的牙齿；位于上下颌的前部；门牙；[医] 切牙；门齿
用法In use
The dentist said my new incisor is growing in straight.
用法提示：incisor 是名词，这里作主语，指门牙。
Rabbits use their sharp incisors to gnaw on carrots and wood.
用法提示：incisors 是 incisor 的复数形式，作宾语，表示门齿。
She chipped her upper incisor when she fell off the bike.
用法提示：incisor 是名词，作宾语，具体指上门牙。
a/an + incisor
incisor 是可数名词，单数前通常要用冠词 a/an。
An incisor is used for biting.
门牙用于咬切。
plural incisors
表示上下门牙整体时通常用复数 incisors。
Adults have eight incisors.
相关词与表达Connections
搭配Collocations
- upper incisors
- 上颌门牙
- The upper incisors are often the first teeth you see when someone smiles.上颌门牙通常是微笑时最先看到的牙齿。
- lower incisors
- 下颌门牙
- The lower incisors are usually a little narrower than the upper ones.下颌门牙通常比上颌门牙稍窄一些。
- central incisors
- 中切牙（中间的门牙）
- Her central incisors are perfectly straight.她的中切牙非常整齐。
- lateral incisors
- 侧切牙（门牙两侧的牙）
- The lateral incisors are located right next to the central incisors.侧切牙紧挨着中切牙。
- permanent incisors
学习提示Learner notes
记忆技巧Memory Tip
联想：incisor 里的 cis 像 scissors（剪刀），门牙像剪刀一样切断食物。
语境与语域Context & Register
语域：formal 常见场景：dental clinic、anatomy textbook、medical report incisor 是解剖学/牙科术语，多用于医疗、生物教材等正式或专业场合；日常口语中更常说 front tooth。
发音与拼写Pronunciation & Spelling
The genuine rhymes are divisor, advisor, visor, and miser, all ending in /-aɪzɝ/. Watch out: scissor (/ˈsɪzɝ/) and incision (/ɪnˈsɪʒən/) look related but sound different.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.