| Noun | 1. | monoamine neurotransmitter - a monoamine that is functionally important in neural transmission noradrenaline, norepinephrine - a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses 5-hydroxytryptamine, serotonin - a neurotransmitter involved in e.g. sleep and depression and memory dopamine, Dopastat, Intropin - a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension monoamine - a molecule containing one amine group (especially one that is a neurotransmitter) |