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Pronunciation: mel'an-yu're-a

Definition: The excretion of urine of a dark color, resulting from the presence of melanin or other pigments or from the action of phenol, creosote, resorcin, and other coal tar derivatives.

[melano- + G. ouron, urine]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.