adrenaline

adren*a*line

noun

{bc}{sx|epinephrine||}

epi*neph*rine

noun

{bc}a crystalline {d_link|sympathomimetic|sympathomimetic} hormone C{inf}9{/inf}H{inf}13{/inf}NO{inf}3{/inf} that is the principal blood-pressure raising hormone secreted by the medulla of the {d_link|adrenal glands|adrenal gland}, 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