incendivity noun. 
[ɪnsɛn'dɪvɪti] E20.[from Latin incendere (see INCENSE noun) + -IVITY.]The ability to effect ignition or set something on fire.
 ■   in'cendive adjective of or pertaining to incendivity; capable of effecting ignition: 
M20.  [TahlilGaran] English Dictionary ▲