noun 1. a picture made by outlining and shading a subject’s shadow. 2. skiagraph.
noun 1. a radiograph.
noun (pl) -chies 1. a variant of sciamachy
noun, Ophthalmology. 1. retinoscope. noun 1. (med) a medical instrument for examining the eye to detect errors of refraction Also called retinoscope See also retinoscopy