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

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

The first known use of epinephrine was in 1899

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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 epinephrin (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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