norepinephrine

English Thesaurus

1. a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses (noun.body)

hypernym	:	pressor, vasoconstrictive, vasoconstrictor,
definition	:	any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure (noun.artifact)

hypernym	:	monoamine neurotransmitter,
definition	:	a monoamine that is functionally important in neural transmission (noun.substance)

hypernym	:	catecholamine,
definition	:	any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland (noun.substance)