illūmĭnātor (inl-), ōris, m. [illumino],
an enlightener (eccl. Lat.), trop.: religionis Christus, Tert. Adv. Marc. 4, 17 fin. : noster Deus, Lact. 6, 18.
·vt A condenser or reflector of light in optical apparatus; also, an <<Illuminant>>. II. Illuminato...
Webster's Dictionary of the English Language