plural noun
Cryp·​to·​di·​ra | \ˌkriptəˈdīrə\

Definition of Cryptodira 

in some classifications

: a suborder of Thecophora comprising turtles that bend the neck in a vertical plane in order to retract it into the shell

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Other Words from Cryptodira

cryptodiran \¦⸗⸗¦⸗rən \ adjective or noun
cryptodire \ˈ⸗⸗ˌdī(ə)r \ noun plural -s
cryptodirous \¦⸗⸗¦dīrəs \ adjective

History and Etymology for Cryptodira

New Latin, from crypt- + -dira (from Greek deirē neck); akin to Latin vorare to devour

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the figure or shape of a crescent moon

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