norepinephrine
noun
nor·epi·neph·rine
| \ ˈnȯr-ˌe-pə-ˈne-frən
\
\
Definition of norepinephrine
: 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
The brain send a distress signal, and the hormones adrenaline and cortisol are released, as well as norepinephrine, dopamine. — The Editors, Marie Claire, "Every Question About Anxiety You've Ever Had, Answered," 8 July 2019 Tricyclic antidepressants, which hinder reabsorption of the neurotransmitters serotonin and norepinephrine (this is implicated in your fight-or-flight response, are another common option for both panic attacks and anxiety, according to the DSM-5. — Cassie Shortsleeve, SELF, "Is There a Difference Between an Anxiety Attack and a Panic Attack?," 12 Sep. 2018 For example, research conducted by scientists from Ohio State and Penn State universities showed that inhaling lemon oil boosted subjects’ norepinephrine release and enhanced positive feelings. — April Long, Marie Claire, "Aromatherapy Perfumes: Do They Really Work?," 20 Feb. 2019 In addition to dopamine, atypical antipsychotics can also affect levels of mood-affecting neurotransmitters like serotonin, norepinephrine, and others, Dr. Li explains. — Carolyn L. Todd, SELF, "9 Things You Should Know About Taking Antipsychotic Drugs," 7 Dec. 2018 The Dutch team ruled out that the performance improvement came from changes in other hormones that can affect metabolism, such as cortisol, epinephrine and norepinephrine. — Melissa Healy, latimes.com, "Deep brain stimulation may offer treatment for type 2 diabetes, study suggests," 26 May 2018 Turns out deep breathing directly affects the levels of a natural chemical messenger in the brain, noradrenaline (also called norepinephrine), that keeps the brain sharp. — Houston Chronicle, "How to “live long and prosper”," 7 July 2018 There’s also lofexidine, a non-opioid treatment that reduces the release of norepinephrine, a neurotransmitter that is thought to play a role in many of the symptoms of opioid withdrawal. — Houston Chronicle, "How to “live long and prosper”," 7 July 2018 Though the exact cause of ADHD isn’t clear, one prevalent theory is that neurotransmitters like dopamine and norepinephrine, which are critical for thinking and attention, are imbalanced in people with this condition. — Christina Stiehl, SELF, "10 Things ADHD Is—and 3 It Isn't," 11 Mar. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'norepinephrine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Keep scrolling for more
Keep scrolling for more
More Definitions for norepinephrine
norepinephrine
noun
nor·epi·neph·rine
| \ ˌnȯr-ˌep-ə-ˈnef-rən
, -rēn
\
, -rēn
\
Medical Definition of norepinephrine
: 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