<p><strong>Adjective:</strong></p><ul><li>Belonging or pertaining to the reptilian order Testudines, comprising turtles, tortoises, and terrapins.</li><li>Similar to, resembling, or representing turtles, tortoises, or terrapins.</li><li>Formed like the carapace of a tortoise; arched; vaulted.</li></ul><p><strong>Noun:</strong></p><ul><li>A turtle, tortoise, or terrapin.</li></ul>