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histaminase

American  
[hi-stam-uh-neys, -neyz] / hɪˈstæm əˌneɪs, -ˌneɪz /

noun

Biochemistry, Pharmacology.

  1. an enzyme that catalyzes the decomposition of histamine, used in treating allergies.

histaminase British  
/ hɪˈstæmɪˌneɪs /

noun

  1. Also called: diamine oxidase.  an enzyme, occurring in the digestive system, that inactivates histamine by removal of its amino group

"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

Etymology

Origin of histaminase

First recorded in 1925–30; histamine + -ase

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.