Webster's Revised Unabridged Dictionary · 1913

Slacken

Slacken , noun

(Metallurgy) A spongy, semivitrifled substance which miners or smelters mix with the ores of metals to prevent their fusion.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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