Shadowgraph

noun, verb

Definitions

Noun
  1. 1
    A shadow-picture; a radiograph or X-ray photograph; a sciagram.

    "`There you have its exemplification, a shadowgraph of vapour, penetrated by a single concrete element - my Mind."

  2. 2
    a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) wordnet
  3. 3
    An optical technique of visualizing patterns of fluid flow by using differences in refractive index
Verb
  1. 1
    To outline in a shadow-picture on a screen. transitive
  2. 2
    To take a picture by means of X-ray, radium, or similar source of actinic radiation.

Etymology

Etymology 1

From shadow + -graph.

Etymology 2

From shadow + -graph.

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