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单词 diastema
释义

WordReference Random House Unabridged Dictionary of American English © 2024
di•a•ste•ma  (dī′ə stēmə),USA pronunciation n., pl. -ma•ta 
    (-mə tə).USA pronunciation 
  1. Cell Biologythe modified protoplasm at the equator of a cell, existing before mitotic division.
  2. Dentistrya space between two teeth, esp. a space between a canine and an incisor of the upper jaw into which a lower canine occludes.
  • Greek: interval, equivalent. to diastē, variant stem of diastánai to stand apart + -ma noun, nominal suffix denoting the result of action
  • Late Latin
  • Middle English 1350–1400

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更新时间:2024/11/11 9:37:32