noradrenalinePronunciation: /ˌnɔːrəˈdrɛn(ə)lɪn/Definition of noradrenaline noun [mass noun] Biochemistry a hormone which is released by the adrenal medulla and by the sympathetic nerves and functions as a neurotransmitter. It is also used as a drug to raise blood pressure. Chemical formula: (HO)2C6H3CHOHCH2NH2 Origin: 1930s: from nor- + adrenalinenoradrenaline in other Oxford dictionaries Definition of noradrenaline in the US English dictionary
