phymatorhysin
noun
phy·ma·to·rhy·sin
ˌfīməˈtȯrəsə̇n
plural -s
: a melanin pigment found in certain melanotic tumors in man and in the urine of persons affected with them
Word History
Etymology
phymato- (from Latin phymat-, phyma) + -rhysin (from Greek rhysis flow—from rhein to flow—+ English -in)