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chelonian

che·lo·ni·an [ ki lṓnee ən ] (plural che·lo·ni·ans)


noun 
Definition:
 
reptile with shell: a reptile, e.g. a turtle or tortoise, that has most of its body enclosed in a hard bony shell. Order Chelonia.

[Early 19th century. < modern Latin Chelonia< Greek khelōnē "tortoise"]

che·lo·ni·an adjective
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