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Meaning of melanosis

mel•a•no•sis

Pronunciation: (mel"u-nō'sis), [key]
— n. Pathol.
  1. abnormal deposition or development of black or dark pigment in the tissues.
  2. a discoloration caused by this.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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