From Longman Dictionary of Contemporary Englishprojectorpro‧jec‧tor /prəˈdʒektə $ -ər/ noun [countable] AMFa piece of equipment that makes a film or picture appear on a screen or flat surface
Examples from the Corpus
projector• The Runco 980 projector costs $ 20,000.• The launcher for the medium-range version will incorporate a projector that produces a beam of infrared radiation.• Disappointment followed, the lurid projector of mental pictures shut down and I was left feeling I ought to have known better.• Accompanying illustrations are, even with the help of an overhead projector, difficult to make clear.• If you know your speaker wants an overhead projector, make sure they've got one that works.• Manion turned on the overhead projector and put a new graphic on it.• Occasionally something went wrong with the projector and the screen was filled with sparks of light, like golden rain.From Longman Business Dictionaryprojectorpro‧jec‧tor /prəˈdʒektə $ -ər/ noun [countable] a piece of equipment that makes a film or picture appear on a screen or flat surface → overhead projector 