The wood of any of these trees, A textile machine consisting of a spiked drum revolving inside a chamber fitted internally with spikes, used to open and clean unprocessed cotton or wool, A rotating, spiked drum used to open, and clean cotton heads, verb_ transitive To open and cleanse (cotton, flax, wool, etc.) by means of a willow, transitive verb_ To open and clean (textile fibers) with a willow, To open and cleanse, as cotton, flax, or wool, by means of a willow. See willow, n., 2.