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[kat-i-kol-uh-meen, -koh-luh-] /ˌkæt ɪˈkɒl əˌmin, -ˈkoʊ lə-/
noun, Biochemistry
any of a group of chemically related neurotransmitters, as epinephrine and dopamine, that have similar effects on the sympathetic nervous system.
1950-55; catechol + -amine Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for catecholamines
  • Adrenal medulla, catecholamines, and pheochromocytoma.
  • We can't be afraid of the catecholamines and the peak in blood pressure in the morning.
  • The body's first response is a surge of energy, the release of a cascade of neurotransmitters called catecholamines.
British Dictionary definitions for catecholamines


any of a group of hormones that are catechol derivatives, esp adrenaline and noradrenaline
Word Origin
C20: from catechu + -ol1 + 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
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Word Origin and History for catecholamines



type of hormone, from catechol (1880), from catechu, 17c. name for an astringent substance used in medicines, dyeing, etc., which apparently is from Malay kachu.

Online Etymology Dictionary, © 2010 Douglas Harper
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catecholamines in Medicine

catecholamine cat·e·cho·la·mine (kāt'ĭ-kō'lə-mēn', -kô'-)
Any of a group of amines composed of a pyrocatechol molecule and the aliphatic portion of an amine that have important physiological effects as neurotransmitters and hormones, such as epinephrine, norepinephrine, and L-dopa.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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catecholamines in Science
  (kāt'ĭ-kō'lə-mēn', -kô'-)   
Any of a group of amines derived from catechol that have important physiological effects as neurotransmitters and hormones and include epinephrine, norepinephrine, and dopamine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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