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
heroinismplay \ˈher-ə-wə-ˌni-zəm, ˈhe-rə-\ noun
Recent Examples of heroin from the Web
While one dose of Naloxone may be able to reverse a heroin overdose, multiple doses are needed for fentanyl, Burke said, adding that there have been 17 lives saved this year with Naloxone.
Of those, 14 were opioid related, and nine involved heroin.
Fueled by gang feuds and disputes over heroin sales, violence spiked to 1990s levels last year with more than 580 people shot and nearly 100 people killed.
An employee at the VA medical center in Long Beach was sentenced to three years in prison for selling heroin onsite to an undercover officer on multiple occasions.
The increase is being attributed to heroin and the powerful synthetic opioids fentanyl and carfentanil.
The mine was mechanized and expanded, and soon many of Indawgyi’s inhabitants had traded their native villages for squalid mining camps where heroin addiction ran rampant.
By that time, heroin and cocaine were starting to replace pot and LSD as the drugs of choice for a number of young San Franciscans and hippies elsewhere.
Alexander Laird, a mother and heroin addict who has been at the center of debate over the care and punishment of pregnant addicts, was arrested against last week for failure to appear in court on a felony.
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.
Origin and Etymology of heroin
from Heroin, a trademark
First Known Use: 1898
HEROIN Defined for English Language Learners
Definition of heroin for English Language Learners
: a powerful illegal drug that is made from morphine
HEROIN Defined for Kids
Definition of heroin for Students
: a very harmful illegal drug that is highly addictive and is made from morphine
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
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