from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of several disorders of porphyrin metabolism, usually hereditary, characterized by the presence of large amounts of porphyrins in the blood and urine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several usually hereditary abnormalities of porphyrin metabolism characterized by excretion of excess porphyrins in the urine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a genetic abnormality of metabolism causing abdominal pains and mental confusion
New Latin : porphyr(in) + -ia1.(American Heritage® Dictionary of the English Language, Fourth Edition)