Cleavage



GRE

解释

GRE 红宝书

• n. 裂缝, 分裂
• ［英］ n. 裂缝, 分裂 ( a cleft; fissure; division)
• ［记］ 参考leave ( 离开) 一起记

Webster Collegiate

noun

• Date: 1816
• 1.
  • a. the quality of a crystallized substance or rock of splitting along definite planes; also the occurrence of such splitting
  • b. a fragment (as of a diamond) obtained by splitting
• 2. the action of cleaving ; the state of being cleft
• 3. the series of synchronized mitotic cell divisions of a fertilized egg that results in the formation of the blastomeres and changes the single-celled zygote into a multicellular embryo; also one of these cell divisions
• 4. the splitting of a molecule into simpler molecules
• 5. the depression between a woman's breasts especially when made visible by a low-cut neckline

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