catecholamine
noun
cat·e·chol·amine
ˌka-tə-ˈkō-lə-ˌmēn 
-ˈkȯ-
: 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
Acute stress can suppress appetite when the body enters fight-or-flight mode and produces catecholamines, which are stress-response hormones.34
4.
—
Laura Schober, Health, 21 Aug. 2025
Stressful situations trigger the adrenal glands to release our fight-or-flight hormones, called catecholamines.
—Kameryn Griesser, CNN Money, 7 June 2025
Ephedrine releases catecholamine chemicals in your body.
—Ross Phan, Pharmd, Bcacp, Bcgp, Bcps, Verywell Health, 17 Jan. 2025
This reaction increases catecholamine levels, raising heart rate and blood pressure.
—Aliss Higham, Newsweek, 10 Jan. 2025
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Laura Schober, Health, 21 Aug. 2025
Stressful situations trigger the adrenal glands to release our fight-or-flight hormones, called catecholamines.
—Kameryn Griesser, CNN Money, 7 June 2025
Ephedrine releases catecholamine chemicals in your body.
—Ross Phan, Pharmd, Bcacp, Bcgp, Bcps, Verywell Health, 17 Jan. 2025
This reaction increases catecholamine levels, raising heart rate and blood pressure.
—Aliss Higham, Newsweek, 10 Jan. 2025
Cite this Entry
“Catecholamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catecholamine. Accessed 29 Sep. 2025.
Copy CitationMedical Definition
catecholamine
noun
cat·e·chol·amine
ˌkat-ə-ˈkō-lə-ˌmēn, -ˈkȯ-
: 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
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