
1) Measuring device 2) Measuring instrument 3) Measuring system
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https://www.crosswordclues.com/clue/tonometer

An instrument used for measuring the fluid pressure inside the eyeball (the intra ocular pressure [IOP])
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http://eyediologyopticians.co.uk/pages/Eye-terms-explained.html

instrument for measuring intraocular pressure
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instrument measuring pitch of musical tones
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• (n.) An instrument for measuring tension, esp. that of the eyeball. • (n.) An instrument for determining the rate of vibrations in tones. • (n.) An apparatus for studying and registering the action of various fluids and drugs on the excised heart of lower animals.
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http://thinkexist.com/dictionary/meaning/tonometer/

(from the article `eye disease`) Estimation of the intraocular pressure is an important part of an ophthalmological examination and is accomplished by an instrument called a ...
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http://www.britannica.com/eb/a-z/t/61

1. <physics> An instrument for determining the rate of vibrations in tones. ... 2. <physiology> An apparatus for studying and registering the action of various fluids and drugs on the excised heart of lower animals. An instrument for measuring tension, especially. That of the eyeball. ... Origin: Gr. A stretching, a tone. ... Source: We...
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http://www.encyclo.co.uk/local/20973

(to-nom´ә-tәr) an instrument for measuring tension or pressure, especially intraocular pressure. gastric tonometer a tonometer and standard vented gastric sump that are incorporated into one device with separate lumens for the tonometer, suction, and vent.
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http://www.encyclo.co.uk/local/21001
To·nom'e·ter noun [ Greek ... a stretching, a tone +
-meter .]
1. (Physics.) An instrument for determining the rate of vibrations in tones.
2. (Physiol.) (a) An apparatus for studying and registering the action of various fluids and drugs on the excised he...
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http://www.encyclo.co.uk/webster/T/68

Type: Term Pronunciation: tō-nom′ĕ-tĕr Definitions: 1. An instrument for determining pressure or tension, especially an instrument for determining ocular tension. 2. A vessel for equilibrating a liquid (blood) with a gas, usually at a controlled temperature; originally so named because it was used with a low gas:blood ratio to ...
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http://www.medilexicon.com/medicaldictionary.php?t=92475

A tonometer is a contrivance for the exact measurement of musical pitch. The original tonometer, invented by Scheibler, consisted of 52 tuning forks laboriously corrected by counting the beats and by comparison with the results obtained from the monochord, so as to provide an accurately tuned scale from any given pitch.
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[
n] - measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
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http://www.webdictionary.co.uk/definition.php?query=tonometer

tonometer 1. An instrument for measuring tension or pressure. 2. An instrument by which intraocular pressure is measured; also called, ophthalmotonometer.
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http://www.wordinfo.info/words/index/info/view_unit/1302/41
noun measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
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https://www.encyclo.co.uk/local/20974
No exact match found.