from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. homogentisic acid
from The Century Dictionary and Cyclopedia
- n. A term originally introduced to designate a certain urinary constituent which is met with on rare occasions, and which causes the urine to turn reddish brown or black on standing or upon the addition of an alkali.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanine
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