GNU Collaborative International Dictionary of English
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‖Testudinata , n. pl. [Nl. See Testudo.] (Zool.) An order of reptiles which includes the turtles and tortoises. The body is covered by a shell consisting of an upper or dorsal shell, called the carapace, and a lower or ventral shell, called the plastron, each of which consists of several plates.1913 Webster