Source : Webster's Revised Unabridged Dictionary (1913)

Palatal \Pal"a*tal\, a. [Cf. F. palatal.]
   1. Of or pertaining to the palate; palatine; as, the palatal
      bones.

   2. (Phonetics) Uttered by the aid of the palate; -- said of
      certain sounds, as the sound of k in kirk.

Palatal \Pal"a*tal\, n. (Phon.)
   A sound uttered, or a letter pronounced, by the aid of the
   palate, as the letters k and y.

Source : WordNet®

palatal
     adj 1: relating to or lying near the palate; "palatal index"; "the
            palatine tonsils" [syn: {palatine}]
     2: produced with the front of the tongue near or touching the
        hard palate (as `y') or with the blade of the tongue near
        the hard palate (as `ch' in `chin' or `j' in `gin') [syn:
        {palatalized}, {palatalised}]

palatal
     n : a semivowel produced with the tongue near the palate (like
         the initial sound in the English word `yeast')