Pronunciation: (kun-den'sur), [key]
1. a person or thing that condenses.
2. an apparatus for condensing.
3. any device for reducing gases or vapors to liquid or solid form.
4. Optics.a lens or combination of lenses that gathers and concentrates light in a specified direction, often used to direct light onto the projection lens in a projection system.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.