testudine
noun/ˈtɛstjʊdɪn/ · /ˈtɛstjʊdaɪn/
1
Any turtle, tortoise, etc of the order Testudines.
- It is convenient to divide the testudines into three groups, which will be referred to as the tortoises, the terrapins, and the turtles.1969, Douglas J. Short, The I.A.T. manual of laboratory animal practice and techniques: