\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also, a pipe or flute, originally made of a bone: cf.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}.

\Tib"i*al\, n. (Anat.)
A tibial bone; a tibiale.