epinephrine

noun
epi·​neph·​rine | \ ˌe-pə-ˈne-frən How to pronounce epinephrine (audio) \
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 In comparison, the researchers found that 49% of patients received a prescription for epinephrine, a drug to treat severe or life-threatening allergic reactions, following an anaphylactic shock. Yoohyun Jung, San Francisco Chronicle, 29 Dec. 2021 No one in the J&J trial reported an allergic reaction requiring epinephrine, but one person in a trial extension has reported such a response. Karen Weintraub, USA TODAY, 27 Feb. 2021 In the event of an insect sting, people with allergies to those stings can be treated with injectable epinephrine (an EpiPen), the ACAAI says. Sarah Jacob, SELF, 26 July 2021 Doubling levels of cortisol alone -- but not norepinephrine, epinephrine or dopamine -- was associated with a 90% higher risk of having a cardiovascular event, the study found. Sandee Lamotte, CNN, 13 Sep. 2021 Sauna sessions boost blood levels of epinephrine, growth hormone and endorphins—the latter of which are, incidentally, also hormones often held responsible for a runner’s high. Sarah Everts, WSJ, 17 July 2021 In fact, for people who carry emergency epinephrine for peanut, insect or other allergies, Moore advises against getting tested. Erika Edwards, NBC News, 5 Apr. 2021 Is there stock medication available such as epinephrine and albuterol for students with severe allergies or asthma? Beth Jameson, The Conversation, 2 June 2021 This is due to release of excessive stress hormones (norepinephrine, epinephrine, growth hormone, cortisol) which leads to elevated blood pressure, but also structural remodeling of the heart and blood vessels with accumulation of coronary plaque. Robert Glatter, Forbes, 18 May 2021

These 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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First Known Use of epinephrine

1899, in the meaning defined above

History and Etymology for epinephrine

International Scientific Vocabulary epi- + Greek nephros kidney — more at nephritis

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Time Traveler for epinephrine

Time Traveler

The first known use of epinephrine was in 1899

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Dictionary Entries Near epinephrine

Epinephelus

epinephrine

epineritic

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Statistics for epinephrine

Last Updated

1 Jan 2022

Cite this Entry

“Epinephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epinephrine. Accessed 27 Jan. 2022.

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More Definitions for epinephrine

epinephrine

noun
ep·​i·​neph·​rine | \ ˌe-pə-ˈne-frən How to pronounce epinephrine (audio) \

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 How to pronounce epinephrine (audio) \

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

More from Merriam-Webster on epinephrine

Britannica English: Translation of epinephrine for Arabic Speakers

Britannica.com: Encyclopedia article about epinephrine

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