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

heroinism

ˈher-ə-wə-ˌni-zəm 

ˈhe-rə-

noun

Examples of heroin in a Sentence

Recent Examples on the Web

Currently, cannabis is a Schedule I drug, under the Controlled Substance Act, alongside drugs such as heroin and LSD. —Andrea Kane, CNN, 30 Sep. 2024

Investigation revealed the suspect was driving under the influence of drugs and was in possession of heroin, in violation of probation terms, police said. —Anne Gelhaus, The Mercury News, 27 Sep. 2024

The synthetic opioid has completely replaced OxyContin and heroin. —Ryan Hampton, TIME, 24 Sep. 2024

To differentiate between salad dressing or bagels and illicit drugs, toxicologists have long recommended testing urine for the presence of a compound called thebaine, which is found in poppy seeds, but not in heroin. —Shoshana Walter, USA TODAY, 9 Sep. 2024

Word History

Etymology

from Heroin, a trademark

First Known Use

1898, in the meaning defined above

Kids 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