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 flammable gas (mostly methane) found in coal mines; forms an explosive mixture with air.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
Topics: business, mining
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: gas
History
From fire + damp with 'damp' not in the usual sense of 'moist' but old German, modern Dutch, Danish 'damp' as steam or vapour, hence a gas liable to catch fire.
Across languages
17 source translations are retained for this English entry.
