catecholamine: meaning, definition, pronunciation and examples
C2Technical/Academic (Medicine, Biochemistry, Neuroscience, Endocrinology)
Quick answer
What does “catecholamine” mean?
Any of a class of monoamine neurotransmitters and hormones derived from the amino acid tyrosine, involved in the body's physiological response to stress.
Audio
Pronunciation
Definition
Meaning and Definition
Any of a class of monoamine neurotransmitters and hormones derived from the amino acid tyrosine, involved in the body's physiological response to stress.
In neurobiology and endocrinology, a group of substances (including dopamine, norepinephrine/noradrenaline, and epinephrine/adrenaline) that function as both neurotransmitters in the nervous system and as hormones released by the adrenal glands. They play critical roles in the 'fight-or-flight' response, mood regulation, and cardiovascular function.
Dialectal Variation
British vs American Usage
Differences
No significant difference in the core term itself. However, the specific catecholamine 'norepinephrine' is almost exclusively used in American English, while 'noradrenaline' is preferred (though not exclusive) in British medical literature. Similarly, 'epinephrine' (US) vs. 'adrenaline' (UK).
Connotations
Identical technical/scientific connotations in both variants.
Frequency
Extremely rare outside technical contexts in both variants. Frequency is identical in comparable technical registers.
Grammar
How to Use “catecholamine” in a Sentence
Levels/secretion of catecholamine[s] + verb (rise, fall, increase)To measure/assay/elevate catecholamine[s]Catecholamine[s] + are/play a role in + processVocabulary
Collocations
Examples
Examples of “catecholamine” in a Sentence
verb
British English
- The tumour tissue was found to catecholamine.
American English
- The cells were engineered to catecholamine.
adjective
British English
- The catecholamine response was blunted.
- She has a catecholamine-secreting tumour.
American English
- The patient exhibited catecholamine excess.
- We studied catecholamine receptor dynamics.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core term in medical, biological, and neuroscience papers and textbooks. Used with precise technical meaning.
Everyday
Extremely rare. May be encountered in popular science articles about stress or mental health.
Technical
The primary context. Used in clinical reports (e.g., 'suspected pheochromocytoma, check urinary catecholamines'), lab protocols, and pharmacology.
Vocabulary
Synonyms of “catecholamine”
Neutral
Weak
Watch out
Common Mistakes When Using “catecholamine”
- Misspelling: 'catcholamine', 'catecholamin'.
- Mispronunciation: stressing the first syllable ('CAT-echolamine') instead of the third.
- Using as a countable noun without plural 's' when referring to the class (e.g., 'Catecholamine is released' is acceptable for the class).
FAQ
Frequently Asked Questions
Adrenaline (epinephrine) is one specific type of catecholamine. Catecholamine is the broader class that also includes noradrenaline (norepinephrine) and dopamine.
Primarily when investigating hypertension caused by a rare adrenal tumour called a pheochromocytoma, or sometimes in diagnosing certain neuroendocrine tumours.
No, catecholamines are endogenous—they are produced inside the body. Some foods contain precursor molecules (like tyrosine) or similar compounds (e.g., octopamine in citrus), but not catecholamines themselves.
Dopamine and norepinephrine are crucial neurotransmitters. Imbalances in their systems are strongly implicated in conditions like depression, ADHD, and Parkinson's disease, making them key targets for psychiatric medications.
Any of a class of monoamine neurotransmitters and hormones derived from the amino acid tyrosine, involved in the body's physiological response to stress.
Catecholamine is usually technical/academic (medicine, biochemistry, neuroscience, endocrinology) in register.
Catecholamine: in British English it is pronounced /ˌkatɪˈtʃəʊləmiːn/, and in American English it is pronounced /ˌkætəˈkoʊləˌmiːn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'CATCH-every-Old-Lady's-AMINE'. The body 'catches' stress and releases these 'amines' (a type of molecule).
Conceptual Metaphor
THE BODY'S CHEMICAL MESSENGERS OF ALERTNESS / The body's internal alarm system chemicals.
Practice
Quiz
Which of the following is NOT a catecholamine?