noun Biochemistry.
  1. an amine, C8H11NO, abundant in ripe cheese as a breakdown product of tyrosine by removal of the carboxyl group (COOH).
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British Dictionary definitions for tyramine


  1. a colourless crystalline amine derived from phenol and found in ripe cheese, ergot, decayed animal tissue, and mistletoe and used for its sympathomimetic action; 4-hydroxyphenethylamine. Formula: (C 2 H 4 NH 2)C 6 H 4 OH

Word Origin for tyramine

C20: from tyr (osine) + amine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

tyramine in Medicine


  1. A colorless crystalline amine found in mistletoe, putrefied animal tissue, certain cheeses, and ergot, or produced synthetically, used as a sympathomimetic agent.
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