1. An optical instrument, which, by an arrangement of reflecting surfaces, presents to the eye a variety of beautiful colours and perfectly symmetrical forms.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• calidoscope,
• kalidoscope,
• kaledoscope,
• kaleidescope,
• kalidscope,
• kalidescope,
• kalidascope,
• kaleidascope,
• kalaidiscope,
• kaledescope,
• kalidiscope,
• kaleidoskope,
• kaliedoscope,
• kaledascope,
• kaleidscope,
• caleidoscope,
• kaledoescope,
• kilidoscope,
• jaleidoscope,
• maleidoscope

• kaleidoscopical,
• kaleidoscopic.

The adjective form of the word "kaleidoscope" is "kaleidoscopic".

The plural of the "kaleidoscope" can be the "kaleidoscopes".

The singular of the "kaleidoscope" can be the "kaleidoscope".