The Collaborative International Dictionary of English v.0.48:
Ghettoize \Ghet"to*ize\, v. t. to form into a ghetto; to isolate (people) as though into a ghetto. [PJC]WordNet (r) 3.0 (2006):
ghettoize v 1: put in a ghetto; "The Jews in Eastern Europe were ghettoized" [syn: ghettoize, ghettoise]