noun Biochemistry, Pharmacology.
an enzyme that catalyzes the decomposition of histamine, used in treating allergies.
Origin of histaminase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an enzyme, occurring in the digestive system, that inactivates histamine by removal of its amino groupAlso called: diamine oxidase
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
[hĭ-stăm′ə-nās′, -nāz′, hĭs′tə-mə-]
An enzyme that inactivates histamine and is found in the digestive system.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.