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tonometer

[ toh-nom-i-ter ]

noun

  1. an instrument for measuring the frequencies of tones, as a tuning fork or a graduated set of tuning forks.
  2. any of various physiological instruments for measuring intraocular pressure or blood pressure.
  3. Physical Chemistry. an instrument for measuring vapor pressure.


tonometer

/ ˌtəʊ-; təʊˈnɒmɪtə; ˌtɒnəˈmɛtrɪk /

noun

  1. an instrument for measuring the pitch of a sound, esp one consisting of a set of tuning forks
  2. any of various types of instrument for measuring pressure or tension, such as the blood pressure, vapour pressure, etc
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • toˈnometry, noun
  • tonometric, adjective
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Other Words From

  • ton·o·met·ric [ton-, uh, -, me, -trik, toh-n, uh, -], adjective
  • to·nome·try noun
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Word History and Origins

Origin of tonometer1

First recorded in 1715–25; tono- + -meter
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Word History and Origins

Origin of tonometer1

C18: from Greek tonos tone + -meter
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Example Sentences

The (Schiotz) tonometer was used daily for 70 consecutive days and never registered more than 12-14 mm.

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