Of or pertaining to Chaldea specifically, or ancient Babylonia in general.

A native of Chaldea; a Chaldee. / A member of the Chaldean Catholic Church. / (biblical) A diviner or astrologer.

The West Semitic language of the ancient Chaldeans. / (historical) Synonym of Biblical Aramaic (now considered a misnomer). / Synonym of Chaldean Neo-Aramaic

plural of Chaldean

(Christianity) An Eastern Catholic particular church (sui juris), which uses the Chaldean rite, in full communion with the Holy See and the rest of the Catholic Church.