spirograph

 
Pronunciation: /ˈspʌɪrə(ʊ)grɑːf/

noun

  • 1an instrument for recording breathing movements.
  • 2 (Spirograph) trademark a toy which is used to draw intricate curved patterns using interlocking plastic cogs and toothed rings of different sizes.

Derivatives

spirographic

Pronunciation: /-ˈgrafɪk/
adjective
spirograph (sense 1).