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.
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noun
A tough, silicified limestone formerly used to make millstones, typified by the presence of multiple cavities that originally housed fossilized shells.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: buhr, burr millstone
Antonyms: none provided
History
No etymology was provided for this word.
