| melanoma, amelanotic | An unpigmented malignant melanoma. It is an anaplastic melanoma consisting of cells derived from melanoblasts but not forming melanin. (12 Dec 1998) |
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| melanomatosis | A condition characterised by numerous, widespread lesions of melanoma. Origin: melanoma + G. -osis, condition (05 Mar 2000) |
| melanonychia | Black pigmentation of the nails. Origin: melano-+ G. Onyx (onych-), nail (05 Mar 2000) |
| melanopathy | Any disease marked by abnormal pigmentation of the skin. Origin: melano-+ G. Pathos, suffering (05 Mar 2000) |
| melanophage | A histiocyte that has phagocytised melanin. Origin: melano-+ G. Phagein, to eat (05 Mar 2000) |
| melanophore | Cell type found in skin of lower vertebrates (amphibian skin, fish scales) that contains granules of the black pigment melanin. The granules can be rapidly redeployed between a dispersed state (which darkens the skin) and concentration at the centre (which lightens it). One of a family of pigmented or light diffracting, coloured cells, known collectively as chromatophores. (18 Nov 1997) |
| melanophore-expanding principle | A polypeptide hormone secreted by the intermediate lobe of the hypophysis in humans (in neurohypophysis in certain other species) which causes dispersion of melanin by melanophores, resulting in darkening of the skin, presumably by promoting melanin synthesis; this effect is readily demonstated in some lower vertebrates, such as frogs and fish; alpha-melanotropin is an N-acetylated peptide with 13 amino acids; beta-melanotropin has 22 amino acids. Synonym: intermedin, melanocyte-stimulating hormone, melanophore-expanding principle. (05 Mar 2000) |
| melanophores | Pigment cells containing melanin. (12 Dec 1998) |
| melanoplakia | The occurrence of pigmented patches on the tongue and buccal mucous membrane. Origin: melano-+ G. Plax, plate, plaque (05 Mar 2000) |
| melanoprotein | A protein complex containing melanin. (05 Mar 2000) |
| melanorrhagia | Synonym: melena. Origin: melano-+ G. Rhegnymi, to burst forth (05 Mar 2000) |
| melanorrhoea | <botany> An East Indian genus of large trees. Melanorrhoea usitatissima is the lignum-vitae of Peru, and yelds a valuable black varnish. Origin: NL, fr. Gr, black + to flow. Source: Websters Dictionary (01 Mar 1998) |
| melanoscope | <instrument, optics> An instrument containing a combination of coloured glasses such that they transmit only red light, so that objects of other colours, as green leaves, appear black when seen through it. It is used for viewing coloured flames, to detect the presence of potassium, lithium, etc, by the red light which they emit. Origin: Gr, black + -scope. Source: Websters Dictionary (01 Mar 1998) |
| melanosis | A disorder caused by a disturbance in melanin pigmentation, melanism. (18 Nov 1997) |
| melanosis circumscripta precancerosa | An obsolete term for lentigo maligna. (05 Mar 2000) |
| melanin |
Substance manufactured in specialized cells in the lower layers of the epidermis (outer skin layer); melanin cells in dark skin produce more melanin than do those in light skin.
출처: highered.mcgraw-hill.com/sites/0072500506/student_...
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| melanin |
The pigment largely responsible for human skin color.
출처: highered.mcgraw-hill.com/sites/0072549238/student_...
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| melanin |
Pigment, as typically produced by specialised epidermal cells called melanocytes.
출처: www.fao.org/docrep/003/X3910E/X3910E16.htm
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| melanin |
a dark pigment found in the skin, retina and hair.
출처: www.ehealthmd.com/library/acne/ACN_glossary.html
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| melanoma |
A malignant tumor produced by the pigment-producing cells of the skin. It begins as a dark skin lesion and may spread rapidly to other areas on the skin and within the body.
출처: www.amfar.org/cgi-bin/iowa/bridge.html
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