morphine

Từ điển Oxford Advanced Learner 8th

mor·phine BrE [ˈmɔːfiːn] NAmE [ˈmɔːrfiːn] (also old-fashioned mor·phia BrE [ˈmɔːfiə] ; NAmE [ˈmɔːrfiə] ) noun uncountable
a powerful drug that is made from ↑opium and used to reduce pain
•Cancer patients are often prescribed increasing doses of morphine.

Word Origin:
[morphine] early 19th cent.: from German Morphin, from the name of the Roman god Morpheus. Morpheus is the god of dreams, and in later writings, also the god of sleep.