Standard Lemma guide

primidone

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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  • Received-Pronunciation: /ˈpɹɪm.əd.əʊn/
  • General-American: /ˈpɹaɪ.məˌdoʊn/
  • General-American: /ˈpɹɪm.əˌdoʊn/

1

noun

Meaning 1

An anticonvulsant drug chemically related (and partially metabolized) to phenobarbital, used in the treatment of epilepsy and essential (idiopathic) tremor.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

an anticonvulsant (trade name Mysoline) used to treat grand mal seizures and essential tremor

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Mysoline

Antonyms: none provided

Broader terms: anticonvulsant, anticonvulsant drug, antiepileptic, antiepileptic drug

History

Etymology

Blend of p(y)rimid(ine) + d(i)one.