Webster’s Revised Unabridged Dictionary · 1913
Slacken
Slack′en (·'n), n. (Metal.) A spongy, semivitrifled substance which miners or smelters mix with the ores of metals to prevent their fusion. [Written also slakin.]
Webster’s Revised Unabridged Dictionary · 1913
Slack′en (·'n), n. (Metal.) A spongy, semivitrifled substance which miners or smelters mix with the ores of metals to prevent their fusion. [Written also slakin.]