amadou

noun

1. a spongy substance prepared from fungi, Polyporus (Fomes) fomentarius and allied species, growing on trees, used as tinder and in surgery.

noun

1. a spongy substance made from certain fungi, such as Polyporus (or Fomes) fomentarius and related species, used as tinder to light fires, in medicine to stop bleeding, and, esp formerly, by anglers to dry off dry flies between casts