The Collaborative International Dictionary of English v.0.48:
Decarburize \De*car"bu*rize\, v. t. To deprive of carbon; to remove the carbon from. [1913 Webster]WordNet (r) 3.0 (2006):
decarburize v 1: remove carbon from (an engine) [syn: decarbonize, decarbonise, decarburize, decarburise, decoke]