What is the term used for the point at which a fire ignites?

The term used for the point at which a fire ignites is the ignition point. This is the critical temperature at which a material can catch fire and start to burn, marking the transition from a non-combustible state to an active combustion state.

Understanding temperature thresholds is essential in fire science and firefighting, as it helps predict when materials will ignite in the presence of a heat source. The ignition point is influenced by various factors, including the nature of the material, the surrounding environment, and the presence of accelerants or other contributing elements.

While combustion point refers to the ongoing chemical reaction of burning and flash point is related to the lowest temperature at which a substance can vaporize to form an ignitable mixture in air, these terms are not synonymous with the initial moment of ignition, which is what the ignition point specifically defines.