diastema 的定义
plural di·a·ste·ma·ta [dahy-uh-stee-muh-tuh]. /ˌdaɪ əˈsti mə tə/.
- Cell Biology. the modified protoplasm at the equator of a cell, existing before mitotic division.
- Dentistry. a space between two teeth, especially a space between a canine and an incisor of the upper jaw into which a lower canine occludes.
更多diastema例句
- There is always a long diastema separating the incisors from the grinding teeth.
- The crowns of all the teeth are equal in height, and there is no diastema—an arrangement found in no living mammal but man.
- The diastema in front of the premolars is longer in the living Equidae than in their extinct allies.
- In all the others there is a gap or diastema of larger or smaller size between the incisors and canines.
- The incisors always have chisel-like edges and persistent pulps, and are separated by a wide diastema from the premolars.