From Longman Business Dictionary
expatriateex·pat·ri·ate /eksˈpætriət, -trieɪteksˈpeɪ-/ (also expat /eksˈpæt/ informal) noun [countableC] someone who has moved to a foreign country to live and workThe State of Bahrain is the banking and commercial centre of the Arabian Gulf, with a large community of expatriates.
—expatriate adjectiveadj [only before a noun]expatriate workers