Chelonia /(kē̇*lō"nĭ*ȧ)/

Che·lo·ni·a

Chelonia

n. pl.
  1. An order of reptiles, including the tortoises and turtles, peculiar in having a part of the vertebræ, ribs, and sternum united with the dermal plates so as to form a firm shell. The jaws are covered by a horny beak. See Reptilia; also, Illust. in Appendix. (Zool.)