Shadowgraph

Alternative forms

• shadow-graph, shadow graph

Origin

From shadow + graph.

Noun

1. A shadow-picture; a radiograph or X-ray photograph; a sciagram.
2. (physics) An optical technique of visualizing patterns of fluid flow by using differences in refractive index

Derived terms

• shadowgraphic
• shadowgraphist
• shadowgraphy

Full definition of shadowgraph

Verb

1. (transitive) To outline in a shadow-picture on a screen.
2. (photography) To take a picture by means of X-ray, radium, or similar source of actinic radiation.