Standard Lemma guide

Seconal

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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  • /ˈsɛkəˌnɔl/
  • /ˈsɛkəˌnɑl/

1

noun

Meaning 1

A barbiturate drug used as a sedative and hypnotic, a trade name of secobarbital.

Definition source: English Wiktionary via Wiktextract

Usage: countable, 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

barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: secobarbital sodium, secobarbital, red devil

Antonyms: none provided

Broader terms: barbiturate

History

Etymology

Blend of secondary + allyl; origin 1930s.