The Collaborative International Dictionary of English v.0.48:
caramelize \caramelize\ v. t. 1 to to convert [usu. sugar] into caramel, by the action of heat. Syn: caramelise. [WordNet 1.5]WordNet (r) 3.0 (2006):
caramelize v 1: be converted into caramel; "The sugar caramelized" [syn: caramelize, caramelise] 2: convert to caramel [syn: caramelize, caramelise]