'Spirograph' definitions:
Definition of 'spirograph'
(from WordNet)
noun
A measuring instrument for recording the depth and rapidity of breathing movements
Definition of 'Spirograph'
From: GCIDE
- Spirograph \Spi"ro*graph\, n. [L. spirare to breathe + -graph.] (Physiol.) An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse. [1913 Webster]