incendiary

He was convinced that the arsonist was not at all what the town imagined: not brazen, but callow; not an expert incendiary noiselessly plying deer paths, but someone who was driving right up to his targets and fumbling with matches … —Barry Werth, New England Monthly, February 1989

White phosphorus, an incendiary, is normally packed in thin-walled casings; the casing is effective for dispersing chemical agents as well. —Stephen Budiansky, Nature, 5–11 Apr. 1984

The British had also made jellied gasoline with rubber, and it was generally recognized to be an excellent incendiary because of its easy ignition, high heat of combustion, and controlled burning rate. —B. & F. M. Brodie, From Crossbow to H-Bomb, 1973

firefighters caught the incendiary, who was watching the effects of his handiwork

blamed the protests on outside incendiaries who were intent on overthrowing the government

While visual effects experts work with images, mechanical effects experts work with machinery, tools, incendiary devices, and other equipment to manipulate physical events during live-action filming. —Patricia D. Netzley, Encyclopedia of Movie Special Effects, 2000

In the mid-Eighties, heavy-metal music was the incendiary genre being demonized … —Alan Light, Rolling Stone, 18 Feb. 1993

The only caveat … is to know one's own sensitivity to chili pepper heat. If a small or moderate dose of capsicum (the incendiary chemical component in chilies) makes you dash for a glass of ice water, this menu is not going to be fun for you. —Harvey Steiman, Wine Spectator, 15 Mar. 1991

The fire was started by an incendiary bomb.

recklessly made incendiary remarks during a period of heightened racial tensions