spirograph noun. ['spʌɪrǝgrɑ:f] L19.
[formed as SPIROMETER: see -GRAPH.]
Medicine. An instrument which provides a continuous tracing of the movements of the lungs during respiration.

■ spirogram noun the tracing produced by a spirograph M20.

■ spiro'graphic adjective pertaining to or observed by means of a spirograph M20.

■ spiro'graphically adverb M20.

■ spi'rography noun the use of a spirograph M20.

[TahlilGaran] English Dictionary ▲