Source : Webster's Revised Unabridged Dictionary (1913)

Lingual \Lin"gual\ (l[i^][ng]"gwal), a. [L. lingua tongue: cf.
   F. lingual. See {Tongue}, and cf. {Language}.]
   Of or pertaining to the tongue; uttered by the aid of the
   tongue; glossal; as, the lingual nerves; a lingual letter.

   {Lingual ribbon}. (Zo["o]l.) See {Odontophore}.