shadowgraph
Meanings
noun
- A shadow-picture; a radiograph or X-ray photograph; a sciagram.
- An optical technique of visualizing patterns of fluid flow by using differences in refractive index
verb
- To outline in a shadow-picture on a screen.
- To take a picture by means of X-ray, radium, or similar source of actinic radiation.
Word forms
Etymology
From shadow + -graph.
Derived words
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