Kaleidoscope

Part of speech: noun

Pronunciation: /kəˈlaɪ.dəˌskəʊp/

Definitions

1. An optical device that generates shifting, colorful patterns through reflections in mirrors
2. A representation of a dynamic and ever-changing situation characterized by diverse components
3. A tubular instrument containing mirrors and pieces of colored glass whose reflections produce continuously ringed, symmetrical patterns

Etymology: David Brewster, a Scottish physicist, invented the kaleidoscope and coined its name in his 1817 patent for the device. The word combines Ancient Greek "kalos" ("beautiful, lovely") and "eidos" ("form, image, shape"), with the English suffix "-scope," used for instruments that let you examine or view something. So the name literally means something like "beautiful-form viewer." Brewster built his optical toy from mirrors and loose coloured fragments, and the way the mirrors multiply each piece into symmetrical patterns made the device a sensation. The word has been used as a verb since the source records it, and the device's name has stayed tied to the idea of constantly shifting, colourful arrangements.

Synonyms: optical instrument, viewing device