Standard Lemma guide

diacetylmorphine

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /daɪˌæsɪtl̩ˈmɔɹfiːn/
  • /ˌdaɪəˌsɛtlˈmɔɹfiːn/

1

noun

Meaning 1

Synonym of heroin.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Qualifier: INN

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: heroin

Antonyms: none provided

2

noun

Meaning 2

a narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: heroin

Antonyms: none provided

Broader terms: hard drug, opiate

Narrower terms: big H, hell dust, nose drops, smack, thunder, skag, scag

History

Etymology

From diacetyl + morphine; 1870-75.