the lowest temperature at which a volatile liquid, after its vapors have been ignited, will give off vapors at a rate sufficient to sustain combustion.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for fire point
Historical Examples of fire point
A stocky young man behind the fire-point emerged from the darkness and climbed briskly into the tonneau.Diane of the Green Van