cleavage meaning

Pronunciation:   "cleavage" in a sentence
  • Noun: cleavage  kleevij
    1. The state of being split or cleft
      "there was a cleavage between the liberal and conservative members" 
    2. The breaking of a chemical bond in a molecule resulting in smaller molecules 
    3. (embryology) the repeated division of a fertilised ovum
      - segmentation 
    4. The line formed by a groove between two parts (especially the separation between a woman's breasts) 
    5. The act of cleaving or splitting

    Derived forms: cleavages

    See also: cleave

    Type of: area, cell division, cellular division, chemical action, chemical change, chemical process, division, region, state

    Part of: gestation, maternity, pregnancy

    Encyclopedia: Cleavage

  • [Architecture]

    In rocks, a tendency to split along parallel, generally closely spaced surfaces as, for example, in slate.


    In some stone industries, the splitting along the depositional layering.


    The rupturing of adhesive bonds between rigid materials; a prying action.


    A tendency in some woods to split along closely spaced parallel planes, as in shingles.

  • [Electronics]
    In a crystalline substance, the quality of splitting along definite planes. Also, a fragment resulting from such a cleft.

  • [Medicine]
    1 : the series of synchronized mitotic cell divisions of the 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
    2 : the splitting of a molecule into simpler molecules


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  1. these cleavages are illustrated in figure 2.9.
  2. there was indeed a cleavage between them.
  3. he had made a great cleavage in his life.
  4. this marks the end of the cleavage stage of development.
  5. cleavage of secondary bonds can also be responsible for polymer deterioration.

Related Words

  1. cleat meaning
  2. cleat wiring meaning
  3. cleats meaning
  4. cleavable meaning
  5. cleavableness meaning
  6. cleavage and polyadenylation factor meaning
  7. cleavage and polyadenylation factors meaning
  8. cleavage and polyadenylation specificity factor meaning
  9. cleavage cavity meaning
  10. cleavage cell meaning
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