Source : Webster's Revised Unabridged Dictionary (1913)

Incendiarism \In*cen"di*a*rism\, n. [From {Incendiary}.]
   The act or practice of maliciously setting fires; arson.

Source : WordNet®

incendiarism
     n : malicious burning to destroy property; "the British term for
         arson is fire-raising" [syn: {arson}, {fire-raising}]