Source : Webster's Revised Unabridged Dictionary (1913)

Aural \Au"ral\, a. [L. aura air.]
   Of or pertaining to the air, or to an aura.

Aural \Au"ral\, a. [L. auris ear.]
   Of or pertaining to the ear; as, aural medicine and surgery.

Source : WordNet®

aural
     adj 1: of or pertaining to hearing or the ear; "an animal with a
            very sensitive aural apparatus"
     2: relating to or characterized by an aura; "various aural
        effects that precede a migraine headache"