Definition of Pigmentation

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Pigmentation: The coloring of the skin, hair, mucous membranes, and retina of the eye.

Pigmentation is due to the deposition of melanin which is a coloring matter. The melanin is produced by specialized cells called melanocytes.

Other pigmented terms include hyperpigmentation (too much pigment), hypopigmentation and underpigmentation (too little pigment), and depigmentation (loss of pigment).