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1. A tube-shaped optical instrument that is rotated to produce a succession of symmetrical designs by means of mirrors reflecting the constantly changing patterns made by small objects, such as beads or bits of colored glass, at one end of the tube.
2. A constantly changing set of colors.
3. A series of changing phases or events: a kaleidoscope of illusions.

[Greek kalos, beautiful + eidos, form; see weid- in Indo-European roots + -scope.]

ka·lei′do·scop′ic (-skŏp′ĭk), ka·lei′do·scop′i·cal adj.
ka·lei′do·scop′i·cal·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.kaleidoscopical - continually shifting or rapidly changing
changeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"