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odonto- +‎ -meter


odontometer (plural odontometers)

  1. (mechanical engineering) An odontograph.
  2. (philately) A perforation gauge.
    • 1872, “Reviews of Postal Publications”, in The Stamp-Collector's Magazine, volume 10, page 110:
      The idea of an odontometer is due to Dr. Magnus—the very word, signifying literally a tooth-measurer, was laid down by him; and in Le Timbre-Poste, five years ago, the first odontometer was published by him in illustration of an article on perforations.
  3. (dentistry) A device for measuring teeth, used in orthodontia and for creating crowns.

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