epinephrine (n.)youdaoicibaDictYouDict[epinephrine 词源字典]
"adrenaline," 1883, from epi- "upon" + Greek nephros "kidney" (see nephron) + chemical suffix -ine (2). So called because the adrenal glands are on the kidneys.[epinephrine etymology, epinephrine origin, 英语词源]