catecholamine: Meaning and Definition of

cat•e•chol•a•mine

Pronunciation: (kat"i-kol'u-mēn", -kō'lu-), [key]
— n. Biochem.
  1. any of a group of chemically related neurotransmitters, as epinephrine and dopamine, that have similar effects on the sympathetic nervous system.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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