sulphuration

from The Collaborative International Dictionary of English v.0.48
Sulphuration \Sul`phu*ra"tion\, n. [Cf. F. sulfuration, L.
   sulphuratio, sulfuratio, a vein of sulphur.]
   The act or process of combining or impregnating with sulphur
   or its compounds; also, the state of being so combined or
   impregnated.
   [1913 Webster]
    

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