| NOUN | substance | catecholamine | any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland |
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| Meaning | Any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland. | |
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| Narrower | epinephrine, epinephrin, adrenaline, Adrenalin | A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin) |
| noradrenaline, norepinephrine | A catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses | |
| Broader | hormone, endocrine, internal secretion | The secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect |
| Spanish | catecolamina | |
| Catalan | catecolamina | |
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