Thysanura \Thys`a*nu"ra\, n. pl. [NL., fr. Gr. ? fringe + ?
tail.] (Zool.)
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}.
[1913 Webster]