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Meaning of CLEAVAGE

Pronunciation:  'kleevij

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

CLEAVAGE is a 8 letter word that starts with C.


 Synonyms: segmentation
 See Also: area, cell division, cellular division, chemical action, chemical change, chemical process, division, gestation, pregnancy, region, state



Webster's 1913 Dictionary
\Cleav"age\, n.
1. The act of cleaving or splitting.

2. (Crystallog.) 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}.

3. (Geol.) Division into lamin[ae], like slate, with the
   lamination not necessarily parallel to the plane of
   deposition; -- usually produced by pressure.

{Basal cleavage}, cleavage parallel to the base of a crystal,
   or to the plane of the lateral axes.

{Cell cleavage} (Biol.), multiplication of cells by fission.
   See {Segmentation}.

{Cubic cleavage}, cleavage parallel to the faces of a cube.

{Diagonal cleavage}, cleavage parallel to ta diagonal plane.

{Egg clavage}. (Biol.) See {Segmentation}.

{Lateral cleavage}, cleavage parallel to the lateral planes.

{Octahedral, Dodecahedral, or Rhombohedral, {cleavage},
   cleavage parallel to the faces of an octahedron,
   dodecahedron, or rhombohedron.

{Prismatic cleavage}, cleavage parallel to a vertical prism.

Biology Dictionary
 Definition: The breaking of bonds between the component units of a macromolecule, for example amino acids in a polypeptide or nucleotide bases in a strand of DNA or RNA, usually by the action of enzymes.
Thesaurus Terms
 Related Terms: abscission, alienation, alpha decay, amputation, atom-chipping, atomic disintegration, atomic reaction, atomization, atom-smashing, beta decay, bombardment, breach, breach of friendship, break, breeding, bullet, butchering, chain reaction, chasm, chopping, cleft, cutting, dichotomy, disaffection, disfavor, disintegration series, disruption, dissociation, disunion, disunity, divergence, dividedness, division, enucleation, estrangement, exchange reaction, excision, falling-out, fission, fission reaction, gamma decay, ionization, laceration, mutilation, neutron reaction, nonreversible reaction, nuclear fission, nucleization, open rupture, photodisintegration, proton gun, proton reaction, recall of ambassadors, rending, resection, reversible reaction, rift, ripping, rupture, schism, scission, section, separation, severance, slashing, slicing, split, splitting, splitting the atom, stimulation, surgery, target, tearing, thermonuclear reaction