Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act of splitting or cleaving.
  • n. The state of being split or cleft; a fissure or division.
  • n. Mineralogy The splitting or tendency to split of a crystallized substance along definite crystalline planes, yielding smooth surfaces.
  • n. Embryology The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms. Also called segmentation.
  • n. Embryology Any single cell division in such a series.
  • n. Chemistry The splitting of a complex molecule, such as a polysaccharide, into simpler molecules.
  • n. Informal The hollow between a woman's breasts, especially as revealed by a low neckline.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The splitting of a large molecule into smaller ones.

from the GNU version of the Collaborative International Dictionary of English

  • n. The act of cleaving or splitting.
  • n. The quality possessed by many crystallized substances of splitting readily in one or more definite directions, in which the cohesive attraction is a minimum, affording more or less smooth surfaces; the direction of the dividing plane; a fragment obtained by cleaving, as of a diamond. See Parting.
  • n. Division into laminæ, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure.

from The Century Dictionary and Cyclopedia

  • n. The act of cleaving or splitting, or the state of being cloven.
  • n. In mineralogy, the property possessed by many crystallized minerals of breaking readily in one or more directions, by which means surfaces more or less smooth are obtained.
  • n. In geology, the property possessed by certain rocks of being easily split or divided into thin layers.
  • n. In embryology, segmentation, specifically of the vitellus: distinctively called egg-cleavage or yolk-cleavage. See segmentation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the line formed by a groove between two parts (especially the separation between a woman's breasts)
  • n. the breaking of a chemical bond in a molecule resulting in smaller molecules
  • n. the act of cleaving or splitting
  • n. (embryology) the repeated division of a fertilised ovum
  • n. the state of being split or cleft

Etymologies

From cleave +‎ -age. (Wiktionary)

Examples

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  • The only word that is its own antonym.

    January 29, 2007