The`o·lo'gi·an noun [ Confer French théologien , Latin theologus , Greek .... See Theology .] A person well versed in theology; a professor of theology or divinity; a divine. Found on http://www.encyclo.co.uk/webster/T/40
A person who systematically studies theology or some aspects of theology. In Colonial America, theologians usually were educated pastors who might instruct prospective ministers in a college setting. Theologians became professional academicians and specialists after the advent of seminaries in the 19th century (Reid et al. 1990 Found on http://www.thearda.com/learningcenter/religiondictionary.asp