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

  • n. An image produced by casting a shadow on a screen.
  • n. See shadow play.
  • n. See radiograph.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An optical technique of visualizing patterns of fluid flow by using differences in refractive index
  • n. An X-ray image.

from The Century Dictionary and Cyclopedia

  • To outline in a shadow-picture on a screen.
  • In photography, to take a picture of by means of X-rays, radium, or a similar source of actinic radiation.
  • n. A shadow-picture.
  • n. A radiograph or X-ray photograph; a sciagram.

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

  • n. a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)


Sorry, no etymologies found.


  • The very unfortunate name "shadowgraph" has been suggested and largely used in the newspapers, and even in medical journals.

    McClure's Magazine, Vol. 6, No. 6, May, 1896

  • Now, when a foreign body impenetrable to X-rays, e.g. a bullet or a needle, has entered these tissues its location can be determined by illuminating the appropriate part of the body with X-rays and taking a shadowgraph of it on a photographic plate, whereupon the impenetrable body is immediately detected.

    Nobel Prize in Physics 1901 - Presentation Speech

  • A girl's figure made a brief shadowgraph in the light, then hurried along the sea front.

    Funeral In Berlin

  • The Greek word for shadow is "skia," and the proper rendering, therefore, of shadowgraph is "skiagraph," corresponding to photograph.

    McClure's Magazine, Vol. 6, No. 6, May, 1896

  • Like a figure of a shadowgraph he slid through its opening, and we followed.

    Nights in London

  • On the screen before us was projected a huge shadowgraph of a chest and abdomen.

    The Dream Doctor

  • At another set of windows -- now that the days are growing short and there is need of lights -- I see in shadowgraph against the curtains an occasional domestic drama.

    Chimney-Pot Papers

  • We were chums in the sense that we were almost constantly together, both at school and at home, and among the partnerships we formed was one of having amateur shadowgraph and panoramic shows in the basement of Willie's home.

    What's in a Dream: A Scientific and Practical Interpretation of Dreams

  • OPTICAL COMPARATOR An optical comparator or shadowgraph (Fig. 1. 10a and 1. 10b) projects an enlarge shadow onto a screen where it may be compared to lines or to a master from which indicates the limits of the dimensions or the contour of the part being checked.

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  • a sealed envelope, "he replied, still studying the shadowgraph closely," has already been established by the well-known English scientist, Doctor Hall Edwards.

    The War Terror


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