Spirograph

ahd-5
  • noun. An instrument for registering the depth and rapidity of respiratory movements.
    • The Century Dictionary and Cyclopedia
  • noun. A device for drawing spirals.
  • noun. Same as atmograph, 1.
    • the GNU version of the Collaborative International Dictionary of English
  • noun. An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. an instrument for measuring and recording the depth and rapidity of breathing movements
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. a measuring instrument for recording the depth and rapidity of breathing movements
    • Hypernym
    Words that are more generic or abstract
    measuring device  measuring instrument  measuring system  
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