napalm /ˈneɪpɑːm
/ ▸ noun [mass noun] a highly flammable sticky jelly used in incendiary bombs and flame-throwers, consisting of petrol thickened with special soaps: napalm was used to strip landscapes of trees and people.
▸ verb [with object] attack with bombs containing napalm: the helicopter napalmed the forest.
– ORIGIN 1940s: from na(phthenic) and palm(itic acid).