(1):
(n.) A material of short fiber and inferior quality obtained by deviling woolen rags or the remnants of woolen goods, specif. those of felted, milled, or hard-spun woolen cloth, as distinguished from shoddy, or the deviled product of loose-textured woolen goods or worsted, - a distinction often disregarded.
(2):
(n.) A fibrous material obtained by deviling rags or the remnants of woolen goods.