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
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That informant, records show, was the same man who was arrested in 2022 after he was seen throwing a bundle of heroin from a car owned by current first deputy superintendent, Yolanda Talley.
—
Sam Charles, Chicago Tribune, 9 May 2025
Bondi said that around 35 kilos of methamphetamine, 35 kilos of meth, 7.5 kilos of cocaine and 4.5 kilos of heroin were also seized along with $5 million in cash and 49 rifles and pistols.
—Michael Dorgan, FOXNews.com, 6 May 2025
Fentanyl reported in >80% of the fatalities is a synthetic opioid that is 50 times stronger than heroin.
—Dr. Yifrah Kaminer, Hartford Courant, 25 Apr. 2025
The additional suspects allegedly worked one of three shifts spread out over the course of the day, the first of which involved picking up heroin, fentanyl and cocaine from Sorey’s Elizabeth home every morning and then doling them out to the sellers.
—Jessica Schladebeck, New York Daily News, 23 Apr. 2025
See All Example Sentences for heroin
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Sam Charles, Chicago Tribune, 9 May 2025
Bondi said that around 35 kilos of methamphetamine, 35 kilos of meth, 7.5 kilos of cocaine and 4.5 kilos of heroin were also seized along with $5 million in cash and 49 rifles and pistols.
—Michael Dorgan, FOXNews.com, 6 May 2025
Fentanyl reported in >80% of the fatalities is a synthetic opioid that is 50 times stronger than heroin.
—Dr. Yifrah Kaminer, Hartford Courant, 25 Apr. 2025
The additional suspects allegedly worked one of three shifts spread out over the course of the day, the first of which involved picking up heroin, fentanyl and cocaine from Sorey’s Elizabeth home every morning and then doling them out to the sellers.
—Jessica Schladebeck, New York Daily News, 23 Apr. 2025
See All Example Sentences for heroin
Cite this Entry
“Heroin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heroin. Accessed 23 May. 2025.
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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