mor·phine | \ˈmȯr-ˌfēn \

Definition of morphine 

: 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

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Sweis, Redish and another colleague published a study in June in Nature Communications that examined how withdrawal from cocaine and morphine impacts decision-making in mice. Maya Miller, Scientific American, "Why It’s So Hard to Junk Bad Decisions—Edging Closer to Understanding “Sunk Cost”," 12 July 2018 The country is second only to the U.S. in per-capita use of opioids, which include fentanyl, oxycodone, heroin and morphine. Vipal Monga, WSJ, "Ontario Promotes Free Use of Opioid Antidote," 24 June 2018 According to the UNODC World Drug Report 2014, Iran accounted for 74 percent of the world’s opium seizures and 25 percent of the world’s heroin and morphine seizures in 2012. Salvador Rizzo, Washington Post, "President Trump’s claim that death sentences would stop drug trafficking," 25 Apr. 2018 Most of the labs, which process heroin or morphine, are in areas controlled or influenced by the Taliban and where government troops have troubling reaching. Jim Michaels, USA TODAY, "Coalition air campaign crippling Taliban's drug revenues," 13 Apr. 2018 The euphoric effects, experts say, are indistinguishable from morphine and heroin. Carol Robinson,, "Drug deaths in Jeffco 2017: Report shows toll of heroin, fentanyl in Birmingham area," 3 Apr. 2018 But drug addicts are taking anywhere between 50-300 capsules a day to induce a euphoric high that is akin to heroin, morphine or oxycodone, according to a 2016 study published in the Annals of Emergency Medicine. Brandon Patterson, Detroit Free Press, "Yes, people are really using an anti-diarrhea medicine to get high," 1 Feb. 2018 After six days of morphine, the baby had nearly been tapered off the drug and was set to be released in a few more days. Jennifer Egan, New York Times, "Children of the Opioid Epidemic," 9 May 2018 Over the next two months, the stores will limit the first acute opioid prescriptions to a seven-day supply and a per-day maximum of a 50 milligrams of morphine equivalent, company officials said in a news release. Natalie Dreier, ajc, "Walmart changes opioid policy, limits first-time prescription fills to 7 days or fewer," 8 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'morphine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of morphine

1817, in the meaning defined above

History and Etymology for morphine

French, from Morpheus

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Statistics for morphine

Last Updated

23 Sep 2018

Look-up Popularity

Time Traveler for morphine

The first known use of morphine was in 1817

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More Definitions for morphine



English Language Learners Definition of morphine

: a powerful drug made from opium that is used to reduce pain


mor·phine | \ˈmȯr-ˌfēn \

Kids Definition of morphine

: a habit-forming drug made from opium and used to relieve pain


mor·phine | \ˈmȯr-ˌfēn \

Medical Definition of morphine 

: 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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Comments on morphine

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one that holds something together

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