Pronunciation: (ō"vur-ik-spōz'), [key]
—v.t., -posed, -pos•ing.
1. to expose too much, as to the sun, cold, or light rays (often used reflexively): Be careful of overexposing yourself to the sun.
2. Photog.to expose (a film or the like) to too much light.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.