1. to combine or treat (steel or iron) with carbon or a carbon-containing substance to increase hardness and strength
Usage: British spelling; American equivalent is 'carburizes'; technical/metallurgy term; third-person singular present tense

Examples

• The factory carburises steel components to improve their durability.
• This process carburises the surface of the metal, making it harder.
• Engineers carburises the iron parts before final assembly.
• The heat treatment carburises the alloy to the required specification.