Source : Webster's Revised Unabridged Dictionary (1913)

Accadian \Ac*ca"di*an\, a. [From the city Accad. See Gen. x.
   10.]
   Pertaining to a race supposed to have lived in Babylonia
   before the Assyrian conquest. -- {Ac*ca"di*an}, n., {Ac"cad},
   n. --Sayce.