| 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) |
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| 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) |
| melanosis coli | Melanosis of the large intestinal mucosa due to accumulation of pigment of uncertain composition within macrophages in the lamina propria. (05 Mar 2000) |
| melanosis corii degenerativa | A congenital abnormality in which pigment is deposited in whorls and streaks; vesicles occasionally occur, and it may be associated with cardiac or neurologic disorders. Compare: incontinentia pigmenti, incontinentia pigmenti achromians. (05 Mar 2000) |
| melanosity | Darkness of complexion. (05 Mar 2000) |
| melanosome | <cell biology> Membrane bounded organelle found in melanocytes, when melanin synthesis is active internal structure is characteristic, containing melanofilaments that have a periodicity of around 9nm and are arranged in parallel arrays. Mature melanosomes, in which the filamentous structure is masked by the dense accumulation of melanin, are transferred to keratinocytes. Origin: Gr. Soma = body (13 Nov 1997) |
| melanosperm | <botany> An alga of any kind that produces blackish spores, or seed dust. The melanosperms include the rockweeds and all kinds of kelp. Melanospermous. Origin: Gr, black + seed. Source: Websters Dictionary (01 Mar 1998) |
| melanostatin | Inhibits synthesis and release of melanotropin. Synonym: melanotropin release-inhibiting hormone. Origin: melanotropin + G. States, stationary, + -in (05 Mar 2000) |
Synonyms : Chloasmas, Freckle, Melanoses, Melasmas
Synonyms : Melanosome
| melanosis |
a condition characterized by abnormal deposits of melanin (especially in the skin)
Ãâó: wordnet.princeton.edu/perl/webwn
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| melanosome |
any of the granules within the melanocytes that contain tyrosinase and synthesize melanin; they are transferred from the melanocytes to keratinocytes.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| melanoscirrhus |
Black-pigmented cancer; an unusual form of melanoma.
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| melanosis lenticularis |
Xeroderma pigmentosum..
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| melanosis coli |
A benign, reversible condition usually, but not always, associated with long-term use of anthranoid laxatives, in which pigment deposition in the lamina propria of the large intestine results in a brown to black discoloration of the mucosa (lining) of the large intestine. Melanosis coli is sometimes called pseudomelanosis coli since the pigment deposited is lipofuscin and not melanin as the name implies. Melanosis coli produces no symptoms and is indicative of chronic laxative use.
Ãâó: medicine.iu.edu/medterms.php
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| melanos | a condition characterized by abnormal deposits of melanin (especially in the skin) |
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