norepinephrine

noun

nor·​epi·​neph·​rine ˈnȯr-ˌe-pə-ˈne-frən 

: a monoamine C₈H₁₁NO₃ that is a neurotransmitter in postganglionic neurons of the sympathetic nervous system and in some parts of the central nervous system, is a vasopressor hormone of the adrenal medulla, and is a precursor of epinephrine in its major biosynthetic pathway

Examples of norepinephrine in a Sentence

Recent Examples on the Web

By boosting levels of neurotransmitters like dopamine and norepinephrine, Adzenys helps improve focus, attention, and behavior in individuals with ADHD.3 Adzenys offers several benefits for individuals with ADHD, including flexible dosing options. —T'keyah Bazin, Pharmd, Verywell Health, 20 Sep. 2024

Iron: Iron is a mineral necessary in numerous bodily functions, including the production of dopamine and norepinephrine. —Kirstyn Hill, Pharmd, Mph, Health, 11 Sep. 2024

Currently, non-stimulant options are limited to mainly norepinephrine reuptake inhibitors or alpha-2 adrenergic agonists. —New Atlas, 18 Sep. 2024

Unlike traditional antidepressants that target the neurotransmitters serotonin and/or norepinephrine, ketamine targets glutamate — the most abundant chemical messenger in the brain, Feifel said. —Andrea Kane, CNN, 31 Aug. 2024

Word History

First Known Use

1937, in the meaning defined above

Kids Definition

norepinephrine

noun

nor·​epi·​neph·​rine ˈnȯ(ə)r-ˌep-ə-ˈnef-rən 

: a hormone that causes blood vessels to contract and helps to transmit nerve impulses in the sympathetic nervous system and in some parts of the central nervous system

Medical Definition

norepinephrine

noun

nor·​epi·​neph·​rine ˌnȯr-ˌep-ə-ˈnef-rən  -rēn 

: a catecholamine C₈H₁₁NO₃ that is the chemical means of transmission across synapses in postganglionic neurons of the sympathetic nervous system and in some parts of the central nervous system, is a vasopressor hormone of the adrenal medulla, and is a precursor of epinephrine in its major biosynthetic pathway

called also arterenol, noradrenaline

see levophed