napalm /ˈneɪ.pɑːm/noun 2verb 1forms 3 noun2 •A highly flammable, viscous substance, designed to stick to the body while burning, used in warfare as an incendiary especially in wooded areas.Phuc was photographed aged nine as she ran, unclothed and screaming in agony, after napalm was dropped by a South Vietnamese Skyraider attack aircraft. — 2022 •(figurative) Anything very incendiary; dynamite.When leaked, the controversial documents proved to be political napalm. verb1 •To spray or attack with napalm. formsnapalmed · napalming · napalms