WordReference Random House Learner's Dictionary of American English © 2014
cleav•age /ˈklivɪdʒ/USA pronunciation  n. 
  1. [uncountable] the act of cleaving or splitting.
  2. [countable] the state of being cleft:a cleavage between the lower and upper classes.
  3. [uncountable] the area between a woman's breasts, esp. when revealed by a low-cut neckline.


Collins Concise English Dictionary © HarperCollins Publishers::

cleavage /ˈkliːvɪdʒ/ n
  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 (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. the natural splitting of certain rocks, or minerals such as slates, or micas along the planes of weakness



'cleavage' also found in these entries:
In the English description:

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