The process or materials used to make something resistant to fire, or the treatment applied to objects to prevent or delay burning.
Gerund form of 'fireproof' (from fire + proof). Emerged as a technical term in the late 19th century.
Modern fireproofing chemistry is sophisticated—some materials actually absorb heat and release water vapor when they burn, creating a cooling effect that protects what's underneath!
Complete word intelligence in one call. Free tier — 50 lookups/day.