slakin

from The Collaborative International Dictionary of English v.0.48
Slakin \Slak"in\, n. (Metal.)
   Slacken.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Slacken \Slack"en\, n. (Metal.)
   A spongy, semivitrifled substance which miners or smelters
   mix with the ores of metals to prevent their fusion. [Written
   also {slakin}.]
   [1913 Webster]
    

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