shadowgraph

English dictionary entry

Meanings

noun
  1. A shadow-picture; a radiograph or X-ray photograph; a sciagram.
  2. An optical technique of visualizing patterns of fluid flow by using differences in refractive index
verb
  1. To outline in a shadow-picture on a screen.
  2. To take a picture by means of X-ray, radium, or similar source of actinic radiation.

Word forms

shadowgraph shadowgraphs shadow-graph shadow graph shadowgraphing shadowgraphed

Etymology

From shadow + -graph.

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