(physics) An optical technique of visualizing patterns of fluid flow by using differences in refractive index
A shadow-picture; a radiograph or X-ray photograph; a sciagram.
verb
(photography) To take a picture by means of X-ray, radium, or similar source of actinic radiation.
(transitive) To outline in a shadow-picture on a screen.
showjumping
showjumping
noun
(sports, equestrianism) A sporting competition where horses are ridden around a course consisting of several jumps, to demonstrate the skill of both the rider and the horse.
