<p><strong>Adjective:</strong></p><ul><li>Capable of being submersed.</li><li>Capable of functioning while submersed; e.g., a submersible pump.</li></ul><p><strong>Noun:</strong></p><ul><li>A ship capable of submerging and operating under water; submarine.</li><li>A device designed for underwater work or exploration, such as a bathyscaphe or diving bell.</li></ul>