catecholamine
noun
cat·e·chol·amine
| \ ˌka-tə-ˈkō-lə-ˌmēn
, -ˈkȯ-\
, -ˈkȯ-\
Definition of catecholamine
: any of various amines (such as epinephrine, norepinephrine, and dopamine) that function as hormones or neurotransmitters or both
Examples of catecholamine in a Sentence
Recent Examples on the Web
Physiologically, when women don’t feel safe in a birth environment, the levels of stress hormone catecholamine rise causing labor to slow or even stop. — Mariko Zapf, Good Housekeeping, "I Had A Successful Vaginal Birth After A Cesarean (VBAC)—Here's What You Need To Know," 16 Nov. 2017 If the data is perceived as something that causes angst, the adrenal gland produces a hormonal secretion that results in the release of catecholamines, especially norepinephrine and epinephrine. — NBC News, "How Impostor Syndrome Is Holding You Back at Work," 26 Oct. 2017 Caffeine prompts the release of natural compounds called catecholamines, including norepinephrine, a stress hormone that can speed the heart rate. — Maggie Fox, NBC News, "Caffeine Overdose Killed South Carolina Teen, Coroner Rules," 15 May 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'catecholamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for catecholamine
catecholamine
noun
cat·e·chol·amine
| \ ˌkat-ə-ˈkō-lə-ˌmēn, -ˈkȯ-
\
\
Medical Definition of catecholamine
: any of various amines (as epinephrine, norepinephrine, and dopamine) that contain a dihydroxy benzene ring, that are derived from tyrosine, and that function as hormones or neurotransmitters or both