The Collaborative International Dictionary of English v.0.48:

monetization \mon`e*ti*za"tion\, n.
   The act or process of converting into money, or of
   establishing something (e.g. gold or silver) as the legal
   tender of a country; as, the monetization of silver.
   [1913 Webster]

WordNet (r) 3.0 (2006):

monetization
    n 1: establishing something (e.g. gold or silver) as the legal
         tender of a country [syn: monetization, monetisation]
         [ant: demonetisation, demonetization]