Source : Webster's Revised Unabridged Dictionary (1913)

Tibial \Tib"i*al\, a. [L. tibialis, fr. tibia the shin bone;
   also, a pipe or flute, originally made of a bone: cf. F.
   tibial.]
   1. Of or pertaining to a tibia.

   2. Of or pertaining to a pipe or flute.

   {Tibial spur} (Zo["o]l.), a spine frequently borne on the
      tibia of insects. See Illust. under {Coleoptera}.