epinephrine
noun
epi·neph·rine
| \ ˌe-pə-ˈne-frən
\
\
variants:
or less commonly epinephrin
Definition of epinephrine
: a crystalline sympathomimetic hormone C9H13NO3 that is the principal blood-pressure raising hormone secreted by the medulla of the adrenal glands, is prepared from adrenal extracts or made synthetically, and is used medicinally especially to stimulate the heart during cardiac arrest and to treat life-threatening allergic reactions
— called also adrenaline
Examples of epinephrine in a Sentence
Recent Examples on the Web
He was revived after 19 minutes of CPR and seven doses of epinephrine. — Alison Knezevich, baltimoresun.com, "York police officer’s family sues Baltimore County over his death at SWAT training," 26 Aug. 2019 Many of the people with a sesame allergy reported experiencing a severe allergic reaction, and one-third reported having had to use an epinephrine auto-injector. — NBC News, "More than 1.5 million Americans could have a sesame allergy," 2 Aug. 2019 Epi pens Students with severe allergies at risk of anaphylaxis can now possess and use a single-dose auto-injectable container of epinephrine while at school. — al.com, "Here are the changes Alabama lawmakers made to schools this year," 22 June 2019 Short Term: The hypothalamus starts the SAM pathway by sending signals via nerves to the adrenal glands, which release the hormone adrenaline (aka epinephrine). — Bridget Alex, Discover Magazine, "What Science Says About Why You're Stressed and How to Cope," 21 June 2019 Some of these monoamines are neurotransmitters including serotonin, epinephrine, and dopamine. — Carolyn Twersky, Seventeen, "Can You Really Have a Serial Killer Gene like Betty on "Riverdale"?," 9 May 2019 Mylan’s life-saving epinephrine auto-injector EpiPen now has a generic rival, the Food and Drug Administration triumphantly announced. — Beth Mole, Ars Technica, "Years after Mylan’s epic EpiPen price hikes, it finally gets a generic rival," 17 Aug. 2018 Fortune EpiPen Rival Novartis’s Sandoz unit is acquiring the rights to sell an epinephrine injector called Symjepi, which is a rival to Mylan’s EpiPen. — Alan Murray, Fortune, "Hello AMLO, EU Retaliation, Stocks Stumble: CEO Daily for July 2, 2018," 2 July 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 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'epinephrine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for epinephrine
epinephrine
noun
ep·i·neph·rine
| \ ˌe-pə-ˈne-frən
\
\
Kids Definition of epinephrine
: a hormone that causes blood vessels to narrow and the blood pressure to increase
epinephrine
noun
epi·neph·rine
variants:
also epinephrin \ ˌep-ə-ˈnef-rən
\
\
Medical Definition of epinephrine
: a colorless crystalline sympathomimetic hormone C9H13NO3 that is the principal blood-pressure-raising hormone secreted by the adrenal medulla, is prepared from adrenal extracts or made synthetically, and is used medicinally especially to stimulate the heart during cardiac arrest and to treat life-threatening allergic reactions
— called also adrenaline