Chaldean
Concise Oxford English Dictionary © 2008 Oxford University Press:
Chaldean /kalˈdiːən/
▶noun
- 1 a member of a people who lived in Chaldea, an ancient country in what is now southern Iraq.
- 2 the Semitic language of the ancient Chaldeans.
■ a language related to Aramaic and spoken in parts of Iraq.
- 3 a member of a Syrian Uniate Church based mainly in Iran and Iraq.
- 1 relating to ancient Chaldea or its people or language.
- 2 relating to the East Syrian Uniate Church.
'Chaldean' also found in these Oxford entries:

