1An image formed by the shadow of an object on a surface.
- ‘He refers to this picture as a shadowgraph rather than a mirage for there are elements of truth of the commerce and industry picture that partially explains its persistence.’
- 1.1 An image formed when light shone through a fluid is refracted differently by regions of different density.
- 1.2 A radiograph.
- ‘Absorption contrast radiographs are basically shadowgraphs of the object under test.’
We take a look at several popular, though confusing, punctuation marks.