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.
As the medical profession came to consider cocaine and morphine as equally dangerous, coca became associated with opium, and the public was led to believe that the ruinous effects of habitual opium use would inevitably befall those who regularly chewed coca leaves. Wade Davis, Rolling Stone, 6 Apr. 2025 Fentanyl, a powerful synthetic opioid that can be 100 times more potent than morphine, is the most common drug involved in overdose deaths in the US – fueling an opioid crisis that has become a high-priority issue for the Trump administration. Rhea Mogul, CNN Money, 28 Mar. 2025 However, it has been shown in rat studies to reduce nicotine use and attenuate withdrawal symptoms associated with morphine and cocaine. Fernando Montero, The Conversation, 6 Mar. 2025 Many contained alcohol, cocaine, morphine, or other active ingredients that ranged from dubious to dangerous. Shayla Love, The Atlantic, 30 Jan. 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 Apr. 2025.

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

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