<p><strong>Noun</strong></p><ul><li>a cotton fabric made waterproof by treatment with oil and used for rain gear and fishermen's clothing.</li><li>a piece of this fabric.</li><li>often refers to oilskins, a garment made of this, especially a long, full-cut raincoat or a loose-fitting suit of pants and jacket worn by sailors for protection against rain.</li></ul>