Am"a*dou (&?;), n. [F. amadou tinder, prop. lure, bait, fr. amadouer to allure, caress, perh. fr. Icel. mata to feed, which is akin to E. meat.] A spongy, combustible substance, prepared from fungus (Boletus and Polyporus) which grows on old trees; German tinder; punk. It has been employed as a styptic by surgeons, but its common use is as tinder, for which purpose it is prepared by soaking it in a strong solution of niter. Ure.