单词 | cleavage |
释义 | Word Frequency cleavage(ˈkliːvɪdʒ) noun 1. informal the separation between a woman's breasts, esp as revealed by a low-cut dress 2. a division or split 3. (of crystals) the act of splitting or the tendency to split along definite planes so as to yield smooth surfaces 4. Also called: segmentation embryology (in animals) the repeated division of a fertilized ovum into a solid ball of cells (a morula), which later becomes hollow (a blastula) 5. the breaking of a chemical bond in a molecule to give smaller molecules or radicals 6. geology the natural splitting of certain rocks, or minerals such as slates, or micas along the planes of weakness |
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