Standard Lemma guide

ethosuximide

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: /ˌɛθ.ə(ʊ).sʌkˈsɪ.mʌɪd/
  • General-American: /ˌɛθ.oʊˈsʌk.sɪˌmaɪd/

1

noun

Meaning 1

An anticonvulsant drug, used especially in the treatment of petit mal epilepsy.

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 drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Emeside, Zarontin

Antonyms: none provided

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

History

Etymology

From eth(yl) + -o- + succi(n)imide.