noun phy·ma·to·rhy·sin \ˌfīməˈtȯrəsə̇n\

Definition of phymatorhysin



  1. :  a melanin pigment found in certain melanotic tumors in man and in the urine of persons affected with them

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Origin and Etymology of phymatorhysin

phymato- (from Latin phymat-, phyma) + -rhysin (from Greek rhysis flow—from rhein to flow—+ English -in) — more at stream

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a rounded knoll or a ridge of ice

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