<p><strong>Verb (used with object)</strong></p><ul><li>to cover or line with a crust or hard coating.</li><li>to form into a crust.</li><li>to deposit as a crust.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to form a crust: They scraped off the barnacles that always encrusted on the ship's hull.</li></ul>