• WordNet 3.6
    • n melanism a condition characterized by abnormal deposits of melanin (especially in the skin)
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Webster's Revised Unabridged Dictionary
    • Melanism (Med) A disease; black jaundice. See Melæna.
    • Melanism An undue development of dark-colored pigment in the skin or its appendages; -- the opposite of albinism.
    • n Melanism mĕl"ȧ*nĭz'm (Ethnol) The character of having a high degree of pigmentation, as shown in dark skin, eyes, and hair.
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Century Dictionary and Cyclopedia
    • n melanism In physiology, an undue development of coloring material in the skin and its appendages: the opposite of albinism; specifically, in zoology, the abnormal development of black or dark pigment in the pelage of a mammal or the plumage of a bird. It is not pathological, like melanosis, interfering in no way with the health and vigor of the animal; it is very frequent in some groups, as squirreis and hawks, and sometimes becomes an inherited specific character, as in the case of the black rat, Mus rattus, believed to be a permanent melanism of the white-bellied rat or roof-rat, M. alexandrinus or M. tectorum. Compare albinism, leucism, erythrism.
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Chambers's Twentieth Century Dictionary
    • n Melanism an undue development of colouring matter in the skin and its appendages
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Webster's Revised Unabridged Dictionary
Gr. me`las -anos, black


In literature:

Melanism is an anomaly, the exact contrary of the preceding.
"Anomalies and Curiosities of Medicine" by George M. Gould
They bore the arms of Jenkin ap Phillip of St. Melans, who traced his descent from 'Guaith Voeth,' Lord of Cardigan.
"Heroes of the Telegraph" by J. Munro
West street bridge, the first below the falls, was a Melan concrete, steel-arch structure, built in 1897, and costing $65,000.
"The Passaic Flood of 1903" by Marshall Ora Leighton
Melanic: with a blackish suffusion.
"Explanation of Terms Used in Entomology" by John. B. Smith
The Melanic race have a much stronger propensity to indulge in the intemperate use of ardent spirits than white people.
"Cotton is King and The Pro-Slavery Arguments" by Various
Very quiet, they're telling, and a bit melan-choly.
"Carnival" by Compton Mackenzie
I do not know of a case of melanism.
"The Badger" by Alfred E. Pease
Only one case of melanism was observed among all the specimens of both species examined.
"Speciation and Evolution of the Pygmy Mice, Genus Baiomys" by Robert L. Packard
It is blackish in colour, but is not a melanic variety of the last.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard

In news:

If any one has seen her that lives near the Melan drives or anything please let us know.

In science:

The frequency of the initially rare melanic version increased so much that it became the dominant phenotype and constituted more than 90 percent of the population in polluted areas in the mid-twentieth century.
Biological Evolution and Statistical Physics