CLEAVAGE

'Cleavage' in general refers to a division or separation of form. Its usage is heavily dependent on cultural context, where it may refer to:

★ Cleavage (crystal), in mineralogy and materials science, is a process of splitting a single crystal.

★ Cleavage (geology), Foliation perpendicular to stress as a result of ductile deformation. e.g. shales (shists)

★ Cleavage (embryo), in embryology, is the division of cells in the early embryo.

★ Cleavage (fiber), in optical fibers.

★ Partial exposure of part of the body:

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★ Cleavage (breasts), partial exposure of the separation between a woman's breasts.

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★ Cleavage enhancement, methods of making a person's breast cleavage look better than it really is.

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★ Cleavage (buttocks), partial exposure of buttock cheeks, particularly when visible because of low trousers, also known colloquially in the UK as 'builder's bum' and in the US as 'plumber's crack'.

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★ Cleavage (belly), partial exposure of the skin between the chest and the waist.

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★ Cleavage (toes), partial exposure of the top of a woman's toes, particularly when visible because of shoes with low cut vamps.

★ Teeth cleavage or tooth cleavage, slang for Diastema (dentistry), the gap between a person's two front teeth.

★ Cleavage (band), Toronto rock band.

★ In cell biology, the Cleavage furrow is the indentation that begins the process of cleavage, by which animal cells undergo cytokinesis.

★ Cleavage (chemistry and biochemistry) The breaking of chemical bonds.

★ Cleavage (politics) The divisions of society that cause people to vote differently