Definition of carburize in English:
 carburize
(British carburise)
verb ˈkɑːbərʌɪzˈkɑːbjʊrʌɪzˈkɑrb(j)əˌraɪz
[with object]Add carbon to (iron or steel), in particular by heating in the presence of carbon to harden the surface.
 Example sentencesExamples
-  Not only can a high-power microwave oven be used to cook food, it can be harnessed for joining, carburizing, sintering, brazing, nitriding, and annealing metal parts.
 -  In the original cooling or through subsequent heat treatment, a matrix can be internally decarbonized or carburized by depositing graphite on existing sites or by dissolving carbon from them.
 -  That is, the hardenability of the case is significantly greater when nitrogen is added by carbonitriding than when the same steel is only carburized.
 -  Micro-sections of structural steels carburised for not less than 8 hours at 925°C and slowly cooled to show cementite networks are photographed at a magnification of 100.
 
Origin
  
Mid 19th century: from French carbure 'carbide' + -ize.
   Definition of carburize in US English:
 carburize
(British carburise)
verbˈkɑrb(j)əˌraɪzˈkärb(y)əˌrīz
[with object]Add carbon to (iron or steel), in particular by heating in the presence of carbon to harden the surface.
 Example sentencesExamples
-  That is, the hardenability of the case is significantly greater when nitrogen is added by carbonitriding than when the same steel is only carburized.
 -  In the original cooling or through subsequent heat treatment, a matrix can be internally decarbonized or carburized by depositing graphite on existing sites or by dissolving carbon from them.
 -  Micro-sections of structural steels carburised for not less than 8 hours at 925°C and slowly cooled to show cementite networks are photographed at a magnification of 100.
 -  Not only can a high-power microwave oven be used to cook food, it can be harnessed for joining, carburizing, sintering, brazing, nitriding, and annealing metal parts.
 
Origin
  
Mid 19th century: from French carbure ‘carbide’ + -ize.