heroin
noun
her·o·in
ˈher-ə-wən 
ˈhe-rə-
: a strongly physiologically addictive narcotic C21H23NO5 that is made by acetylation of but is more potent than morphine and that is prohibited for medical use in the U.S. but is used illicitly for its euphoric effects
Examples of heroin in a Sentence
Recent Examples on the Web
Law enforcement officers raided the house in October, finding a gun and large amounts of fentanyl and heroin.
—
Angela Hart | Kff Health News, Los Angeles Times, 18 May 2024
Notably, other Schedule I drugs that fall under that umbrella include heroin and LSD, according to the DEA.
—Francisco Velasquez, Quartz, 16 May 2024
See all Example Sentences for heroin 
Angela Hart | Kff Health News, Los Angeles Times, 18 May 2024
Notably, other Schedule I drugs that fall under that umbrella include heroin and LSD, according to the DEA.
—Francisco Velasquez, Quartz, 16 May 2024
See all Example Sentences for heroin
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'heroin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Heroin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heroin. Accessed 22 May. 2024.
Copy CitationKids Definition
heroin
noun
her·o·in
ˈher-ə-wən
: a strongly addictive drug made from the opium poppy and stronger than morphine
Medical Definition
heroin
noun
her·o·in
ˈher-ə-wən
: a strongly physiologically addictive narcotic C21H23NO5 that is made by acetylation of but is more potent than morphine and that is prohibited for medical use in the United States but is used illicitly for its euphoric effects
called also acetomorphine, diacetylmorphine, diamorphine
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