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
See all Example Sentences for epinephrine 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
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
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 21 Dec. 2024.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share