Source : Webster's Revised Unabridged Dictionary (1913)

Sanctification \Sanc`ti*fi*ca"tion\, n. [L. sanctificatio: cf.
   F. sanctification.]
   1. The act of sanctifying or making holy; the state of being
      sanctified or made holy; esp. (Theol.), the act of God's
      grace by which the affections of men are purified, or
      alienated from sin and the world, and exalted to a supreme
      love to God; also, the state of being thus purified or
      sanctified.

            God hath from the beginning chosen you to salvation
            through sanctification of the Spirit and belief of
            the truth.                            --2 Thess. ii.
                                                  13.

   2. The act of consecrating, or of setting apart for a sacred
      purpose; consecration. --Bp. Burnet.

Source : WordNet®

sanctification
     n : a religious ceremony in which something is made holy