Lexic.us

¹ Source: wiktionary.com

Definition of Melanins

1. melanin [n] - See also: melanin

Medical Definition of Melanins

1. Pigments causing darkness in skin, hair, feathers, etc. They are irregular polymeric structures and are divided into three groups: allomelanins in the plant kingdom and eumelanins and phaeomelanins in the animal kingdom. (12 Dec 1998)

Lexicographical Neighbors of Melanins

Literary usage of Melanins

Below you will find example usage of this term as found in modern and/or classical literature:

1. Elements of the Comparative Anatomy of Vertebrates by Gustav Mann, Walther Löb, Henry William Frederic Lorenz, Robert Wiedersheim, William Newton Parker, Thomas Jeffery Parker, Harry Clary Jones, Sunao Tawara, Leverett White Brownell, Max Julius Louis Le Blanc, Willis Rodney Whitney, John Wesley Brown, Wi (1906)
"CHAPTER XII melanins THE melanins are dark, black or brown, even reddish-brown pigments, occurring in hairs, the skin, the choroid coat of the eye, ..."

2. Chemistry of the Proteids by Gustav Mann (1906)
"As the melanins are built up qualitatively out of the same radicals as are met with in albuminous substances, they are regarded as derivatives of albumins, ..."

3. Studies in Physiological Chemistry: Being Reprints of the More Important by Russell Henry Chittenden (1901)
"In a recent contribution by Schmiedeberg f to the chemical composition and nature of melanins, emphasis is laid upon the possible origin of these substances ..."

4. A Text-book of Physiological Chemistry by Olof Hammarsten, Sven Gustaf Hedin (1914)
"GORTNER differentiates between two different groups of melanins. ... The melanin is now insoluble in dilute acids, like the second group of melanins. ..."

5. Lectures on Chemical Pathology in Its Relation to Practical Medicine by Christian Archibald Herter (1902)
"... tyrosin, aspartic acid—Ammonia : its origin during metabolism— melanins—General reactions of ..."

6. Studies from the Laboratory of Physiological Chemistry by Russell Henry Chittenden (1901)
"Tins view is seemingly based upon the partial resemblance in chemical composition between the latter substance and the melanins, — a resemblance which is ..."

7. Text-book of Physiological Chemistry in Thirty Lectures by Emil Abderhalden (1908)
"The constituents of the other melanins, prepared from the hair, choroidea, etc., ... It has been suggested that, because some of the melanins contain iron, ..."

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