WordNet (r) 3.0 (2006):

Chaldaea
    n 1: an ancient region of Mesopotamia lying between the
         Euphrates delta and the Persian Gulf and the Arabian
         Desert; settled in 1000 BC and destroyed by the Persians in
         539 BC; reached the height of its power under
         Nebuchadnezzar II [syn: Chaldea, Chaldaea]
    2: an ancient kingdom in southern Mesopotamia; Babylonia
       conquered Israel in the 6th century BC and exiled the Jews to
       Babylon (where Daniel became a counselor to the king) [syn:
       Babylonia, Chaldaea, Chaldea]