Source : Webster's Revised Unabridged Dictionary (1913)

Girdler \Gir"dler\, n.
   1. One who girdles.

   2. A maker of girdles.

   3. (Zo["o]l.) An American longicorn beetle ({Oncideres
      cingulatus}) which lays its eggs in the twigs of the
      hickory, and then girdles each branch by gnawing a groove
      around it, thus killing it to provide suitable food for
      the larv[ae].