/euh kay"dee euhn, euh kah"-/ , n.
1. the eastern Semitic language, now extinct, of Assyria and Babylonia, written with a cuneiform script.
2. one of the Akkadian people.
3. Obs. Sumerian.
adj.
4. of or belonging to Akkad.
5. of or pertaining to the eastern Semitic language called Akkadian.
6. Obs. Sumerian.
Also, Accadian .
[ 1850-55; AKKAD + -IAN ]