1. to coat, treat, or combine with platinum; to make platinum-like in appearance or properties
Usage: British spelling (American: platinizes); technical/chemistry context; third-person singular present tense

Examples

• The jeweler platinises the silver ring to give it a more lustrous finish.
• The laboratory platinises the electrode surface to improve its catalytic properties.
• Modern manufacturing platinises certain alloys to enhance their durability.
• The process platinises the metal, making it resistant to corrosion.