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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noun
A natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
dark acid granitic glass
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: volcanic glass
History
From pitch + stone.
Across languages
8 source translations are retained for this English entry.
