<p><strong>Noun</strong></p><ul><li>incudes</li><li>incus Anatomy: the middle one of a chain of three small bones in the middle ear of humans and other mammals.</li><li>Compare malleus, stapes.</li><li>Also called anvil, the spreading, anvil-shaped, upper portion of a mature cumulonimbus cloud, smooth or slightly fibrous in appearance.</li></ul>