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noun
A machine used in mining placer deposits, which washes paydirt slurries pumped into the top of machine, extracting pebbled ores though its sluice runs into its riffles, grates and miner's moss, a type of washplant.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Borrowed from Portuguese lavador (“washer”).
