heroin

noun
her·​o·​in | \ ˈher-ə-wən How to pronounce heroin (audio) , ˈhe-rə- \

Definition of heroin

: 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

Keep scrolling for more

Other Words from heroin

heroinism \ ˈher-​ə-​wə-​ˌni-​zəm How to pronounce heroin (audio) , ˈhe-​rə-​ \ noun

Examples of heroin in a Sentence

Recent Examples on the Web In addition to confiscating more than 1,000 pounds of methamphetamine, the operation seized 500 grams of fentanyl, 20 pounds of cocaine, 20 pounds of heroin, dozens of firearms, and more than $200,000 in cash. Michael Cabanatuan, San Francisco Chronicle, "Massive federal drug bust nets 1,000 pounds of methamphetamine, 44 suspects," 11 Feb. 2021 Garrett Reid, 29, an unofficial strength and conditioning coach for the Eagles, died Aug. 5, 2012, of an accidental overdose of heroin. Los Angeles Times, "The troubled pasts of Britt and Garrett Reid, sons of Chiefs coach Andy Reid," 6 Feb. 2021 Of those 233 deaths, 160 cases involved fentanyl, a pain-management drug that is more potent than heroin and 50 to 100 times stronger than morphine. Michelle Hunter, NOLA.com, "As fatal overdoses surge in Jefferson Parish, deadly new fentanyl variants emerge," 2 Feb. 2021 Surur was charged with conspiracy to commit wildlife trafficking, wildlife trafficking, conspiracy to commit money laundering and conspiracy to distribute and possess one kilogram or more of heroin. Larry Neumeister, Star Tribune, "Man charged in rhino horns, elephant ivory trafficking case," 25 Jan. 2021 New drugs also appeared as supplies of heroin faded. al, "Drug overdoses climbed in Alabama during pandemic," 25 Jan. 2021 Law enforcement officials have shifted their focus to the influx of new dangerous substances like fentanyl, a synthetic form of heroin. Kevin Krause, Dallas News, "Synthetic marijuana prosecutions get mixed results due to legal complications," 25 Dec. 2020 Agents with the Gainesville/Hall County Multi-Agency Narcotics Squad seized about 8 pounds of methamphetamine, 2 pounds of marijuana, 8 grams of heroin and $83,000 in cash, according to Booth. Henri Hollis, ajc, "Another week, another $400K drug bust in Hall County," 18 Dec. 2020 Government officials have subsequently told Human Rights Watch and Fakhry’s family that he was involved in organizing a party for members of the gay community and was found in possession of half a kilogram of heroin. Washington Post, "He was the party planner of Baghdad. Then armed men took him away.," 16 Dec. 2020

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

See More

First Known Use of heroin

1898, in the meaning defined above

History and Etymology for heroin

from Heroin, a trademark

Keep scrolling for more

Learn More about heroin

Statistics for heroin

Last Updated

19 Feb 2021

Cite this Entry

“Heroin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heroin. Accessed 2 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for heroin

heroin

noun

English Language Learners Definition of heroin

: a powerful illegal drug that is made from morphine

heroin

noun
her·​o·​in | \ ˈher-ə-wən How to pronounce heroin (audio) \

Kids Definition of heroin

: a very harmful illegal drug that is highly addictive and is made from morphine

heroin

noun
her·​o·​in | \ ˈher-ə-wən How to pronounce heroin (audio) \

Medical Definition of heroin

: 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

Keep scrolling for more

More from Merriam-Webster on heroin

Nglish: Translation of heroin for Spanish Speakers

Britannica English: Translation of heroin for Arabic Speakers

Britannica.com: Encyclopedia article about heroin

Comments on heroin

What made you want to look up heroin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!