[ kə'lʌɪdəskəʊp ]
■ noun
1》 a toy consisting of a tube containing mirrors and pieces of coloured glass or paper, whose reflections produce changing patterns when the tube is rotated.
2》 a constantly changing pattern or sequence.
Derivatives
kaleidoscopic adjective
kaleidoscopically adverb
Origin
C19: from Gk kalos 'beautiful' + eidos 'form' + -scope .