pigmentation

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pigmentation

 [pig″men-ta´shun]
the deposition of coloring matter; the coloration or discoloration of a part by a pigment.

pig·men·ta·tion

(pig'men-tā'shŭn),
Coloration, either normal or pathologic, of the skin or tissues resulting from a deposit of pigment.

pigmentation

/pig·men·ta·tion/ (pig″men-ta´shun) the deposition of coloring matter; the coloration or discoloration of a part by a pigment.

pigmentation

(pĭg′mən-tā′shən)
n. Biology
1. Coloration of tissues by pigment.
2. Deposition of pigment by cells.

pigmentation, pigmented

See pigment.

pig·men·ta·tion

(pig'mĕn-tā'shŭn)
Coloration, either normal or pathologic, of the skin or tissues resulting from a deposit of pigment.

pigmentation

Coloration of any part of the body, especially the skin. Normal pigmentation of skin, hair and eyes is occasioned by the presence of melanin-a brown or black pigment produced by cells called melanocytes. Abnormal pigmentation may occur from local or general loss of melanin. ALBINISM is caused by a general deficiency of melanin. Other causes of abnormal pigmentation include skin disease, pregnancy (see CHLOASMA), ADDISON'S DISEASE, CUSHING'S SYNDROME, JAUNDICE and HAEMOCHROMATOSIS.

pigmentation

normal/abnormal skin/tissue coloration; due to exaggeration of normal pigmentation or ectopic pigment deposition

pigmentation

the deposition of coloring matter; the coloration or discoloration of a part by a pigment. See also hyperpigmentation, hypopigmentation.

bacterial pigmentation
production of pigment is a characteristic of some bacteria which may be useful in identification. Examples are Pseudomonas aeruginosa, Chromobacterium violaceum and Serratia marcescens.
hematogenous pigmentation
pigmentation produced by accumulation of hemoglobin derivatives, such as hematoidin or hemosiderin.
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