shadowgraph — English Dictionary

Noun

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

   Examples

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

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.

   Usage

   • Transitive

2. To take a picture by means of X-ray, radium, or similar source of actinic radiation.

Noun

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

   Synonyms

   radiogramradiographskiagraphskiagram

   Broader terms

   photographphotoexposurepicturepic