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trimethylaminuria

[trī-mĕth′ə-lăm′ə-nur′ē-ə]
n.
  1. Increased excretion of trimethylamine in urine and sweat, with a characteristic fishy body odor.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.