catecholamine
catecholamine A dihydroxyphenylalkylamine derivative of the amino acid tyrosine: adrenalin and noradrenalin are two such derivatives. Many catecholamines act as neurotransmitters.
catecholamine
catecholamine Any of a class of amines that possess a catechol (C6H4(OH)2) ring. Including dopamine, adrenaline, and noradrenaline, they function as neurotransmitters and/or hormones.
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catecholamine
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catecholamine