[ te-stood-n-it, -eyt, -styood- ]
/ tɛˈstud n ɪt, -ˌeɪt, -ˈstyud- /
formed like the carapace of a tortoise; arched; vaulted.
any member of the order Testudines, comprising turtles, tortoises, and terrapins.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for testudinate
The testudinate is employed where the span is not great, and where large rooms are provided in upper stories.Ten Books on Architecture|Vitruvius