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epinephrine
noun
epi·neph·rine
ˌe-pə-ˈne-frən
variants
or less commonly epinephrin
: 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
Hypoglycemia triggers the release of the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline) in your body.
—Anna Giorgi, Verywell Health, 29 Nov. 2024
In extreme circumstances, exposure to egg could cause anaphylaxis, an extreme allergic reaction and life-threatening emergency requiring urgent medical attention and an immediate shot of adrenaline, also known as epinephrine.
—Yaakov Katz, Newsweek, 28 Nov. 2024
Some medications, such as Benadryl and epinephrine, can only be administered by flight attendants once an on-call medical professional on the ground has given approval.
—Christine Chung, New York Times, 15 Apr. 2024
Anaphylaxis can be treated using an epinephrine injection—also known as an EpiPen.
—Marco Rubio, Newsweek, 1 Nov. 2024
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Word History
Dictionary Entries Near epinephrine
Cite this Entry
“Epinephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epinephrine. Accessed 22 Dec. 2024.
Kids Definition
epinephrine
noun
ep·i·neph·rine
ˌep-ə-ˈnef-rən
: a hormone of the adrenal gland acting especially on smooth muscle, causing narrowing of blood vessels, and raising blood pressure
called also adrenaline
Medical Definition
epinephrine
noun
epi·neph·rine
variants
also epinephrin
: 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
More from Merriam-Webster on epinephrine
Britannica English: Translation of epinephrine for Arabic Speakers
Britannica.com: Encyclopedia article about epinephrine
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