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
The treatment is epinephrine, which is given through an injection (an EpiPen).
—
Amber J. Tresca, Verywell Health, 31 Jan. 2025
In the event of anaphylaxis, 911 should be called and adrenaline (epinephrine) administered, such as with an EpiPen.
—Paul Du Quenoy, Newsweek, 9 Jan. 2025
Certain cases even call for an ultrasound or an epinephrine shot to stimulate their heartbeat, according to the Cape Cod Times.
—Margherita Bassi, Smithsonian Magazine, 5 Dec. 2024
Medics performed one round of epinephrine (EPI), a medication used to stimulate the heart during emergencies, and chest compressions, successfully reviving her.
—David Faris, Newsweek, 27 Dec. 2024
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Amber J. Tresca, Verywell Health, 31 Jan. 2025
In the event of anaphylaxis, 911 should be called and adrenaline (epinephrine) administered, such as with an EpiPen.
—Paul Du Quenoy, Newsweek, 9 Jan. 2025
Certain cases even call for an ultrasound or an epinephrine shot to stimulate their heartbeat, according to the Cape Cod Times.
—Margherita Bassi, Smithsonian Magazine, 5 Dec. 2024
Medics performed one round of epinephrine (EPI), a medication used to stimulate the heart during emergencies, and chest compressions, successfully reviving her.
—David Faris, Newsweek, 27 Dec. 2024
See all Example Sentences for epinephrine
Dictionary Entries Near epinephrine
Cite this Entry
“Epinephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epinephrine. Accessed 11 Feb. 2025.
Copy CitationMedical 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
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