a. and sb. Zool. [f. L. testūdin-em tortoise + -IAN.] a. adj. Of or pertaining to tortoises. b. sb. A member of the tortoise family.
1854. Owen, Skel. & T., in Orr’s Circ. Sc., I. Org. Nat., 213 Side walls … are added in the … land-tortoises (testudinians).
