Thysanura :: Thysanura (n. pl.) An order of wingless hexapod insects which have setiform caudal appendages, either bent beneath the body to form a spring, or projecting as bristles. It comprises the Cinura, or bristletails, and the Collembola, or springtails. Called also Thysanoura. See Lepisma, and Podura..

Thysanuran :: Thysanuran (n.) One of the Thysanura. Also used adjectively.

Thysanurous :: Thysanurous (a.) Of or pertaining to the Thysanura.

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