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Spirograph vs Spirometer - What's the difference?

spirograph | spirometer |

As a proper noun spirograph

is a geometric drawing toy consisting of a set of plastic gears and toothed rings.

As a noun spirometer is

(medicine) a device used to measure the volume of air inspired and expired by the lungs.

spirograph

English

Noun

(en noun)
  • (medicine) an instrument for measuring and recording the depth and rapidity of breathing movements

    • Related terms

    *spirogram

    spirometer

    English

    (wikipedia spirometer)

    Alternative forms

    * spirometre (nonstandard)

    Noun

    (en noun)
  • (medicine) A device used to measure the volume of air inspired and expired by the lungs.

    • Related terms

    * spirometric * spirometry

    See also

    * pneumatometer