• Heroin

    Pronunciation

    Origin

    Since the 1890s from a German trademark, from Ancient Greek ἥρως (hērōs, "hero") (due to the feelings of power and exaltation while under the influence of the drug).

    Full definition of heroin

    Noun

    heroin

    (uncountable)
    1. A powerful and addictive drug derived from opium producing intense euphoria classed as an illegal narcotic in most of the world.

    Synonyms

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