spirograph
/ˈspaɪərəgrɑːf/noun
1
- an instrument for recording breathing movements呼吸描记器。
2
Spirograph
trademark a toy which is used to draw intricate curved patterns using interlocking plastic cogs and toothed rings of different sizes〈商标〉螺旋绘图器（一种益智玩具, 用互相连接、大小不一的塑料齿轮及带齿圆环画出复杂的曲线形图案）。
派生词