The Collaborative International Dictionary of English v.0.48:
Liberalization \Lib`er*al*i*za"tion\ (-al*[i^]*z[=a]"sh[u^]n), n. The act of liberalizing; the act of making less strict. Syn: liberalization, relaxation. [1913 Webster + WordNet 1.5]WordNet (r) 3.0 (2006):
liberalization n 1: the act of making less strict [syn: liberalization, liberalisation, relaxation]