n. Renewal of life; restoration to life; resuscitation.n. In chem., the reduction of a metal from a state of combination to its metallic state.n. In surgery, the dissection off of the skin or mucous membrane in a part or parts, that by the apposition of surfaces thus prepared union of parts may be secured.n. The restoration to an effective condition (in which it can again be used to decolorize syrup in sugar-refining) of spent animal charcoal by reheating it in char-kilns, or by washing with hydrochloric acid, submitting to a kind of fermentation, and finally heating in the char-kiln.