a hormone that is secreted by the adrenal medulla in response to stress and increases heart rate, pulse rate, and blood pressure, and raises the blood levels of glucose and lipids. It is extracted from animals or synthesized for such medical uses as the treatment of asthma. Chemical name: aminohydroxyphenylpropionic acid; formula: C9H13NO3
US name: epinephrine
WordReference Random House Unabridged Dictionary of American English © 2025
A•dren•al•in
(ə dren′l in),USA pronunciation [Pharm., Trademark.]
WordReference Random House Learner's Dictionary of American English © 2025- Drugs, Trademarksepinephrine (def. 2).
a•dren•a•line /əˈdrɛnəlɪn/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2025- Biochemistry, Drugsa hormone that increases the heart rate and blood pressure in response to fear, anger, stress, etc.
a•dren•a•line
(ə dren′l in, -ēn′),USA pronunciation n. [Biochem, Pharm.]
- Biochemistry, Drugsepinephrine (def. 1).
- adrenal + -ine1 1900–05
Collins Concise English Dictionary © HarperCollins Publishers::
'Adrenalin' also found in these entries (note: many are not synonyms or translations):