Standard Lemma guide
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
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adj
of or pertaining to the lumen
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: biology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adj
of or pertaining to the nature of light
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adj
light-speed; having the speed of light (usually in the void)
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The drug phenobarbital.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a long-acting barbiturate used as a sedative
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: sodium thiopental, phenobarbital, phenobarbitone, purple heart
Antonyms: none provided
Broader terms: barbiturate
History
From Latin lumina (“lights”) + English -al.
From the brand name.
