D defs.my
Entry 1 sense Webster, 1913

norepinephrine

· IPA /ˌnɔːɹɛpɪˈnɛfɹɪn/
01 n. A hormone (C8H11NO3) secreted by the adrenal medulla; it also serves as a neurotransmitter, released at synapses; called also noradrenaline…
  1. 1.
    A hormone (C8H11NO3) secreted by the adrenal medulla; it also serves as a neurotransmitter, released at synapses; called also noradrenaline. Chemically it is 2-amino-1-(3,4-dihydroxyphenyl)ethanol. It is a precursor of epinephrine in the body. Also: noradrenaline