ignescent

[ ig-nes-uh nt ]
/ ɪgˈnɛs ənt /

adjective

emitting sparks of fire, as certain stones when struck with steel.
bursting into flame.

noun

an ignescent substance.

Origin of ignescent

1820–30; < Latin ignēscent- (stem of ignēscēns), present participle of ignēscere to catch fire, equivalent to ign(is) fire + -ēscent- -escent

British Dictionary definitions for ignescent

ignescent
/ (ɪɡˈnɛsənt) /

adjective

giving off sparks when struck, as a flint
capable of bursting into flame

noun

an ignescent substance

Word Origin for ignescent

C19: from Latin ignescere to become inflamed