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See more synonyms for projector on Thesaurus.com
  1. an apparatus for throwing an image on a screen, as a motion-picture projector or magic lantern.
  2. a device for projecting a beam of light.
  3. a person who forms projects or plans; schemer.
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Origin of projector

First recorded in 1590–1600; project + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for projector


  1. an optical instrument that projects an enlarged image of individual slides onto a screen or wallFull name: slide projector
  2. an optical instrument in which a strip of film is wound past a lens at a fixed speed so that the frames can be viewed as a continuously moving sequence on a screen or wallFull name: film projector, cine projector
  3. a device for projecting a light beam
  4. a person who devises projects
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for projector


1590s, "one who forms a project," agent noun in Latin form from project (v.). In the optical, camera sense it is from 1884.

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Online Etymology Dictionary, © 2010 Douglas Harper