heroin

Pronunciation

• IPA ^(key): /ˈhɛroʊ.ɪn/

• Audio (US)

  (file)

• Homophone: heroine

Noun

Singular heroin

Plural none

Heroin powder

1. (uncountable) Heroin is very strong and addictive narcotic drug; it is made from opium.

   The man injected heroin into his arm and immediately began to feel better.