Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.
Class III. Words Relating to MatterSection III. Organic Matter
2. Sensation
(iii) Perceptions of Light
445. Optical Instruments.
prism; camera, hand camera, kodak [trade name], moving-picture machine; camera-lucida, camera-obscura; magic lantern (show) [See Appearance]; megascope; stereopticon; chromatrope, thaumatrope; stereoscope, pseudoscope, polyscope, kaleidoscope, kaleidophon or kaleidophone.
photometer, optometer, eriometer, actinometer, lucimeter, radiometer; abdominoscope, gastroscope, helioscope, polariscope, polemoscope, spectroscope, spectrometer.
MIRROR, reflector, speculum; looking-glass, pier-glass, cheval-glass; hand mirror.
OPTICS, optician; photography, photographer; optometry, optometrist; abdominoscopy; gastroscopy; microscopy, microscopist.