Source : Webster's Revised Unabridged Dictionary (1913)

Beetle \Bee"tle\, n. [OE. bityl, bittle, AS. b[imac]tel, fr.
   b[imac]tan to bite. See {Bite}, v. t.]
   Any insect of the order Coleoptera, having four wings, the
   outer pair being stiff cases for covering the others when
   they are folded up. See {Coleoptera}.

   {Beetle mite} (Zo["o]l.), one of many species of mites, of
      the family {Oribatid[ae]}, parasitic on beetles.

   {Black beetle}, the common large black cockroach ({Blatta
      orientalis}).