morphine

noun

mor·​phine ˈmȯr-ˌfēn How to pronounce morphine (audio)
: a bitter crystalline addictive narcotic base C17H19NO3 that is the principal alkaloid of opium and is used in the form of a soluble salt (such as a hydrochloride or a sulfate) as an analgesic and sedative

Examples of morphine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
End-of-life drugs have included DDMAPh, a combination of diazepam, digoxin, morphine sulfate, amitriptyline, and phenobarbital; DDMA, a combination of diazepam, digoxin, morphine sulfate, and amitriptyline; and DDMP, a combination of diazepam, digoxin, morphine, sulfate and propranolol. Teri Sforza, Oc Register, 9 Jan. 2026 The medical examiner’s office said, too, that more than 80% of 2025’s overdose deaths involved fentanyl, the synthetic opioid largely produced by Mexican drug cartels that’s 100 times more potent than morphine. Sam Charles, Chicago Tribune, 7 Jan. 2026 Keeping up with inflation Pfizer announced the most list price hikes, on around 80 different drugs including cancer drug Ibrance, migraine pill Nurtec, and COVID treatment Paxlovid, as well as some administered in hospitals such as morphine and hydromorphone. Reuters 12 Hr Ago, CNN Money, 1 Jan. 2026 The Weld County Coroner's report revealed Peterson died of an accidental morphine overdose. Gillian Telling, PEOPLE, 27 Dec. 2025 See All Example Sentences for morphine

Word History

Etymology

French, from Morpheus

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of morphine was in 1817

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Cite this Entry

“Morphine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/morphine. Accessed 11 Jan. 2026.

Kids Definition

morphine

noun
mor·​phine ˈmȯr-ˌfēn How to pronounce morphine (audio)
: a bitter white habit-forming narcotic drug made from opium and used especially to deaden pain
Etymology

derived from Morpheus "Greek god of dreams"

Medical Definition

morphine

noun
mor·​phine ˈmȯr-ˌfēn How to pronounce morphine (audio)
: a bitter crystalline addictive narcotic base C17H19NO3 that is the principal alkaloid of opium and is used in the form of its hydrated sulfate (C17H19NO3)2·H2SO4·5H2O or hydrated hydrochloride C17H19NO3·HCl·3H2O as an analgesic and sedative

More from Merriam-Webster on morphine

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