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Norepinephrine

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norepinephrine --> noradrenaline

(Science: drug, hormone) catecholamine neurohormone, the neurotransmitter of most of the sympathetic nervous system (of so called adrenergic neurons): binds more strongly to _ adrenergic receptors. Stored and released from chromaffin cells of the adrenal medulla. A catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses.