<p><strong>Verb</strong></p><ul><li>(used with object)<ul><li>To draw or bend into folds or alternate furrows and ridges.</li><li>To wrinkle, as the skin or face.</li><li>(Western U.S.) To make irrigation ditches in (a field).</li></ul></li></ul><p><strong>Adjective</strong></p><ul><li>Corrugated; wrinkled; furrowed.</li></ul>