Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A device for projecting a beam of light.
  • n. A machine for projecting an image onto a screen.
  • n. One who devises plans or projects.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An optical device that projects a beam of light, especially one used to project an image (or moving images) onto a screen.
  • n. A person who devises or manages projects; a planner.

from the GNU version of the Collaborative International Dictionary of English

  • n. One who projects a scheme or design; hence, one who forms fanciful or chimerical schemes.
  • n. an optical instrument which projects an image from a transparency or an opaque image onto a projection screen or other surface, using an intense light and one or more lenses to focus the image. The term projector by itself is usually used for projection of transparent images by passing the light beam through the image; a projector which projects an image of an opaque object is now ususally referred to as an overhead projector. In projection of this latter form the projection is accomplished by means of a combination of lenses with a prism and a mirror or reflector. Specific instruments have been called by different names, such as balopticon, radiopticon, radiopticon, mirrorscope, etc.

from The Century Dictionary and Cyclopedia

  • n. One who forms projects; one who forms a scheme or design; a schemer.
  • n. That which projects; specifically, a parabolic mirror, or a lens or combination of lenses, used for projecting a beam of light.
  • n. A camera for throwing an image on a screen by means of electric, magnesium, oxyhydrogen, or other suitable light.
  • n. The square of the area of a plane triangle divided by the continued product of the sides.
  • n. In projective geometry: A projecting straight.
  • n. A projecting plane.
  • n. An eject.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an optical device for projecting a beam of light
  • n. an optical instrument that projects an enlarged image onto a screen

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