bristletail(redirected from true bristletail)
Also found in: Thesaurus.
1. Any of various small wingless insects of the order Archaeognatha, having a three-pronged tail and large compound eyes and tending to jump when disturbed.
2. A silverfish.
(Animals) any primitive wingless insect of the orders Thysanura and Diplura, such as the silverfish and firebrat, having a flattened body and long tail appendages
any of various wingless insects of the order Thysanura, having long bristlelike caudal appendages, comprising the firebrats and silverfish.