| 单词 | diastema |
| 释义 | diastema /duy'euh stee"meuh/, n. , pl. diastemata /-meuh teuh/. 1. Cell Biol. the modified protoplasm at the equator of a cell, existing before mitotic division. 2. Dentistry. a space between two teeth, esp. a space between a canine and an incisor of the upper jaw into which a lower canine occludes. [1350-1400; ME < LL < Gk: interval, equiv. to diaste, var. s. of diastánai to stand apart + -ma n. suffix denoting the result of action] |
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