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catecholamine: one of the biogenic amines, including epinephrine, which is both a hormone (adrenaline) and a neurotransmitter; and dopamine, a neurotransmitter. See also biogenic amine; indolamine; dopamine.

Dictionary of Sexology Project: Main Index

Any of many hormones (e.g. epinephrine) that affects the sympathetic nervous system and is a derivative of the steroid catechol, which is derived from the amino acid tyrosine. Such a hormone is also called an "andrenergic amine".

From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.

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