projector

n. machine for displaying films or pictures onto large screens; launcher, device used to fire weapons; floodlight, spotlight

Projectors are used for displaying an image on a projection screen or similar surface for the view of an audience.Video projectorsLCD projectorCRT projectorDLP projectorLCOS projectorTransparency projectors:Movie projectorSlide projectorOverhead projectorMagic LanternEnlarger - see also (Contact printer) OtherMovie projectorHandheld projector (To be used with PDAs, Digital Cameras and mobile phones)Opaque projector (Reflective projector)
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Noun
1. an optical device for projecting a beam of light
(hypernym) optical device
2. an optical instrument that projects an enlarged image onto a screen
(hypernym) optical instrument
(hyponym) epidiascope
(derivation) project

n. projector

(n.)
One who projects a scheme or design; hence, one who forms fanciful or chimerical schemes.