tes·tu·di·nate 
(tĕs-tdn-ĭt, -āt′, -tyd-)
(tĕs-tdn-ĭt, -āt′, -tyd-)n.
A turtle or tortoise.
[From New Latin Testūdināta, former order name, from Testūdō, type genus, from Latin testūdō, testūdin-, tortoise; see TESTUDO.]
tes·tudi·nate adj.