Dictionary
epinephrine
noun epi·neph·rine \ˌe-pə-ˈne-frən\
Definition of EPINEPHRINE
: a colorless crystalline feebly basic sympathomimetic hormone C9H13NO3 that is the principal blood-pressure raising hormone secreted by the adrenal medulla and is used medicinally especially as a heart stimulant, a vasoconstrictor in controlling hemorrhages of the skin, and a muscle relaxant in bronchial asthma —called also adrenaline
See epinephrine defined for kids
Variants of EPINEPHRINE
epi·neph·rine also epi·neph·rin \ˌe-pə-ˈne-frən\
ADVERTISEMENT
Origin of EPINEPHRINE
International Scientific Vocabulary epi- + Greek nephros kidney — more at nephritis
First Known Use: 1899
EPINEPHRINE Defined for Kids
epinephrine
noun ep·i·neph·rine \ˌe-pə-ˈne-frən\
Definition of EPINEPHRINE for Kids
: a hormone that causes blood vessels to narrow and the blood pressure to increase
Medical Dictionary
epinephrine
noun epi·neph·rine
Medical Definition of EPINEPHRINE
: a colorless crystalline feebly basic 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 as a heart stimulant, as a vasoconstrictor (as to treat open-angle glaucoma and life-threatening allergic reactions and to prolong the effects of local anesthetics), and as a bronchodilator—called also adrenaline
Variants of EPINEPHRINE
epi·neph·rine also epi·neph·rin \ˌep-ə-ˈnef-rən\
Learn More About EPINEPHRINE
Browse
Next Word in the Dictionary: epineriticPrevious Word in the Dictionary: EpinephelusAll Words Near: epinephrine
ADVERTISEMENT
Seen & Heard
What made you want to look up epinephrine? Please tell us where you read or heard it (including the quote, if possible).