Source : Webster's Revised Unabridged Dictionary (1913)

Secularization \Sec`u*lar*i*za"tion\, n. [Cf. F.
   s['e]cularisation.]
   The act of rendering secular, or the state of being rendered
   secular; conversion from regular or monastic to secular;
   conversion from religious to lay or secular possession and
   uses; as, the secularization of church property.

Source : WordNet®

secularization
     n 1: the activity of changing something (art or education or
          society or morality etc.) so it is no longer under the
          control or influence of religion [syn: {secularisation}]
     2: transfer of property from ecclesiastical to civil possession
        [syn: {secularisation}]