a circular electronic flash that surrounds a camera lens, used especially for even illumination in closeup photography.
noun, Printing. 1. a Linotype used primarily for making corrections.
noun 1. a lock nailed or screwed to one face of a door, gate, etc., as opposed to one built into its edge.
noun 1. backlighting.
noun 1. Printing. an operator of a ring machine. 2. a person who assists an auctioneer by spotting bids and signaling the information to the auctioneer, often from the ring where livestock is displayed for sale.