Kaleidoscope Definition , Usage, Examples, Antonyms, Synonyms and related concepts. No need to search again - Memorize it with Dictozo KALEIDOSCOPE meaning : 1. a toy in the shape of a tube, that you look through to see different patterns of light made by…. Learn more. Definition of kaleidoscope noun in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. kaleidoscope , optical device consisting of mirrors that reflect images of bits of coloured glass in a symmetrical geometric design through a viewer. The design may be changed endlessly by rotating the section containing the loose fragments. The name is derived from the Greek words kalos (“beautiful”), eïdos (“form”), and skopeïn (“to view”). The kaleidoscope was invented by Sir David Brewster about 1816 and patented in 1817. Sold usually as a toy, the kaleidoscope also has ...