Webster’s Revised Unabridged Dictionary · 1913
Illuminator
Il·lu′mi·na′tor, n. [L., an enlightener, LL. also, an illuminator of books.] 1. One whose occupation is to adorn books, especially manuscripts, with miniatures, borders, etc. See Illuminate, v. t., 3.
2. A condenser or reflector of light in optical apparatus; also, an illuminant.