Phrase 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.
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noun
Synonym of fusain (“fossilized charcoal”).
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: business, mining
No example sentence was provided for this meaning.
Synonyms: fusain
Antonyms: none provided
History
Apparently named via an instance of the same theme whence also mother of pearl and mother of vinegar: a matrix that produces (or was believed to produce) the end product and also coexists therewith.
