noun
norepinephrine
A neurotransmitter and hormone; also known as noradrenaline. Used in medical and biological contexts.
ノルエピネフリンは交感神経系で重要な役割を果たす。
Norepinephrine plays an important role in the sympathetic nervous system.
Adrenaline (epinephrine) is a related hormone; norepinephrine differs in its chemical structure and specific physiological effects.
Loanword from English 'norepinephrine', itself from 'nor-' (normal) + 'epinephrine'.