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

Derived Forms

• toˈnometry, noun
• tonometric, adjective

Other Words From

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

Word History and Origins

Origin of tonometer¹

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

Word History and Origins

Origin of tonometer¹

C18: from Greek tonos tone + -meter

Example Sentences

"This is a good piece of kit because it's accurate in any position, unlike the static machine," he says waving a tonometer, which measures the pressure in the eye.

From BBC