<p><strong>Noun</strong></p><ul><li>Any tree or shrub of the genus <em>Salix</em>, characterized by narrow, lance-shaped leaves and dense catkins bearing small flowers, many species having tough, pliable twigs or branches used for wickerwork, etc.</li><li>The wood of any of these trees.</li><li>Informal: Something, especially a cricket bat, made of willow wood.</li><li>Also called willower, willy.</li><li>A machine consisting essentially of a cylinder armed with spikes revolving within a spiked casing, for opening and cleaning cotton or other fiber.</li></ul><p><strong>Verb</strong></p><ul><li>To treat (textile fibers) with a willow.</li></ul>