Dictionary.com

tonometer

[ toh-nom-i-ter ]
/ toʊˈnɒm ɪ tər /
Save This Word!

noun

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

QUIZZES

QUIZ YOURSELF ON THE MANY TYPES OF NOUNS

They're everywhere you turn, but can you identify the 10 types of nouns easily? This quiz will test your mettle against singular, plural, concrete, abstract, common, proper, collective, compound, countable, and uncountable nouns!
Question 1 of 7
Shoelaces, rainbow, toothpaste, and haircuts are all what type of noun?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of tonometer

First recorded in 1715–25; tono- + -meter

OTHER WORDS FROM tonometer

ton·o·met·ric [ton-uh-me-trik, toh-nuh-], /ˌtɒn əˈmɛ trɪk, ˌtoʊ nə-/, adjectiveto·nom·e·try, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for tonometer

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

    Glaucoma|Various

British Dictionary definitions for tonometer

tonometer
/ (təʊˈnɒmɪtə) /

noun

an instrument for measuring the pitch of a sound, esp one consisting of a set of tuning forks
any of various types of instrument for measuring pressure or tension, such as the blood pressure, vapour pressure, etc

Derived forms of tonometer

tonometric (ˌtɒnəˈmɛtrɪk, ˌtəʊ-), adjectivetonometry, noun

Word Origin for tonometer

C18: from Greek tonos tone + -meter
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

Medical definitions for tonometer

tonometer
[ tō-nŏmĭ-tər ]

n.

Any of various instruments for measuring pressure or tension, especially one used in tonography.

Other words from tonometer

to′no•metric (tō′nə-mĕtrĭk) adj.to•nome•try n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK