n. ~ A fine, irregular pattern of cracks in the surface of hard or dry materials, such as varnish, a ceramic glaze, albumen, or paint. Notes:  Crazing typically does not reveal the underlying support. [..]

A series of hairline cracks in the surface of weathered materials having a web-like appearance. Also, hairline cracks in pre-finished metals caused by bending or forming. See also brake metal.

Fine cracking of glass, usually from heat of fire. 

Condition in Opal or some other gemstones such as Amber that cause them to form internal or surface cracks.

A network of fine fracture lines in the emulsion layer of film, caused by shrinkage of the acetate base. In a more general sense, a pattern of fine, irregular cracks in the surface of any hard or dry [..]

The minute cracks on the surface of plastic materials.

The appearance of minute, interlacing cracks or checks on the surface of a dried film of finishing material.

A series of hairline cracks in the surface of weathered materials, having a web-like appearance. Also, hairline cracks in pre-finished metals caused by bending or forming. (see brake metal)

Fine, random cracks or fissures in a network on or under a surface of plaster, cement, mortar, concrete, ceramic coating or paint film; caused by shrinkage.

Small cracks near or on the surface of plastic materials. Cross-linking

The appearance of fine cracks in the surface of paint, lacquer, plastic or vinyl. Typically the result of prolonged exposure to sunlight (ultraviolet light) and weather.

A network of fine cracks in the varnish, causing a loss of transparency. Crazing is associated with an aged and embrittled varnish layer.

this is a term generally used when describing a defect of an item.  Craizing is the same as cracking, except that crazing if often very small, almost undetectable cracking.  Celluloid pinback buttons [..]

A mild form of alligatoring, characterized by small cracks in the finish.

Network of fine lines in or on a coating or transparent surface: “spider web” or “dried mud” pattern.

Condition in Opal that causes it to form small, internal cracks, and in some severe cases will eventually disintegrate the Opal.

Random hairline cracks forming a network pattern on or under a surface of plaster, concrete, glazed ceramic, paint or transparent finish.

In ceramics, a mismatch in the thermal expansion between the glaze of an item and its physical body often causes small hairline cracks of the glazed surface, which can potentially compromise the piece [..]

Fine lines or minute surface cracks occurring on painted surfaces due to unequal contraction in drying or cooling.

the cracking which can occur in glazed tiles or china due to tensile stresses.

very fine surface cracks or lines that appear on the surface of a varnish film due to unequal drying times.

Tiny surface cracks in the glaze of porcelain or on a painting.

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