porphyria

[pawr-feer-ee-uh, -fahy-ree-uh]
noun Pathology.
a defect of blood pigment metabolism in which porphyrins are produced in excess, are present in the blood, and are found in the urine.
Also called hematoporphyria.


Origin:
1920–25; porphyr(in) + -ia

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World English Dictionary
porphyria (pɔːˈfɪrɪə)
 
n
a hereditary disease of body metabolism, producing abdominal pain, mental confusion, etc
 
[C19: from New Latin, from porphyrin a purple substance excreted by patients suffering from this condition, from Greek porphura purple]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

porphyria por·phyr·i·a (pôr-fēr'ē-ə)
n.
Any of several disorders of porphyrin metabolism, usually hereditary, characterized by large amounts of porphyrins in the blood and urine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

porphyria

any of a group of diseases characterized by the marked overproduction and excretion of porphyrins or of one or another of their precursors. The porphyrins are reddish constituents of heme, the deep red iron-containing pigment of hemoglobin, the oxygen-carrying protein of the red blood cells. The deposition of porphyrin compounds in body tissues, notably the skin, gives rise to a variety of symptoms, the nature of which depends on the specific compound that is abnormally metabolized.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Hemolytic anemia and porphyria can also cause urine to take on these colors.
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