释义 |
nor·epinephrine \|nȯr+\ noun Etymology: nor- + epinephrine : a crystalline compound (HO)2C6H3CH(OH)CH2NH2 that occurs in the levoratatory form as a hormone with epinephrine and that has a strong vasoconstrictor action and mediates transmission of sympathetic nerve impulses but lacks or exhibits weakly most other epinephrine effects (as on cardiac output or blood-sugar concentration) — called also arterenol, noradrenaline; compare sympathin |