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.
References in periodicals archive ?
Study author Dr Matthew Koski of the University of Virginia said, "In light of global change, temperature stress could be an increasingly important selective agent on pollen pigmentation.
By measuring the skin pigmentation, researchers could learn about the underlying genomic alterations that were responsible for difference in skin pigmentation.
Brown pigmentation on both sides of the face, with roughly symmetrical patches on the forehead, cheeks and/or upper lip.
Along with cutaneous pigmentation, longitudinal and transverse bands or diffuse nail pigmentation and patchy pigmentation of tongue and buccal mucosa may also occur.
The purpose of the present study was to evaluate if there is any influence of food and drink intake (eating habits), drug consumption, smoking, presence of bacteria and saliva pH on the formation of black tooth discoloration and to determine the metal composition of such pigmentation.
In our patients, in spite of belonging to skin type IV where pigmentation is more common than white skin, less number of patients had pigmentation as compared to the study in UK.
The articular cartilage of the left knee was exposed via the medial parapatellar approach, which revealed that the entire articular cartilage exhibited severe black pigmentation and that the synovial membrane was also pigmented (Figure 2(a)).
It also reviews key players involved in the therapeutic development for Hyper Pigmentation and special features on late-stage and discontinued projects.
We hypothesized that bleaching is a function of environmental variables, and coral pigmentation shows various stages and intensity, that can be identified and monitored.
The biochemical basis of pigmentation has been well studied in naturally colored cotton but little is known about the molecular basis of color development in cotton fibers.

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