Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Any of various instruments for measuring pressure or tension.
- n. An instrument for measuring hydrostatic pressure within the eyeball, used to detect glaucoma.
- n. Music An instrument, such as a graduated set of tuning forks, used to determine the pitch or vibration rate of tones.
Century Dictionary and Cyclopedia
- n. An instrument for determining the degree of intravascular blood-pressure.
- n. An instrument for measuring strains within a liquid. A thermometer with very thin elliptical bulb may be used, as the pulling forces distend the bulb, causing the mercurial column to descend.
- n. In music, an instrument for measuring the pitch of tones; especially, a tuning-fork, or a graduated set of tuning-forks, whose pitch has been exactly determined. The term is used specifically for an exceptionally perfect set of forks prepared by Scheibler about 1833 for the establishment of a standard scale.
- n. In medicine, an instrument for measuring the degree of tension in the eyeball in cases of glaucoma.
Wiktionary
GNU Webster's 1913
- n. (Physics.) 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.
- n. An instrument for measuring tension, esp. that of the eyeball.
WordNet 3.0
- n. measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
Etymologies
- Greek tonos, tension; see tone + -meter. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“Tests done with a tonometer are quick and painless though some people find them uncomfortable.”
“The majority of these involved the use of the lungs as a tonometer, equilibrating the oxygen or the CO2 of the lungs with that of the incoming pulmonary arterial blood.”
“A third type which will come to be more generally recognized, as the tonometer comes to be more widely used, includes cases in which there is little beside the increase of intra-ocular tension to justify their mention in a discussion on glaucoma.”
“The tension has never been noted at more than Plus T (?), and when taken with the tonometer varied from 9 to 32 mm. for the worse eye, and 13 to 24 mm. for the other.”
“He checked his results with the tonometer after 200, 500 and 1,000 pressures, and found that even in normal eyeballs such massage was followed by a fall of intra-ocular tension, the average being nearly 9 mm. after a thousand pressures.”
“The (Schiotz) tonometer was used daily for 70 consecutive days and never registered more than 12-14 mm.Hg. The man had been blinded by wood alcohol.”
“Pulse pressure analysis using Labchart and a tonometer”
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“Non-Mydriatic and Mydriatic Retinal cameras, and full auto-tonometer and full auto-ref keratometers, all of which will be on display at the show.”
“The KAT uses the 'Goldmann method' of measuring intraocular pressure of the eye, calculating the force required to flatten a constant area of the cornea using a special prism mounted on the tonometer head and placed against the cornea.”
“Then they use a device called a Goldmann tonometer to measure the pressure of the eye by pressing gently against it.”
Lists
These user-created lists contain the word ‘tonometer’.
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phrontistery-t
from phrontistery.info
tabacosis, tabanid, tabaret, tabati?re, tabby, tabefaction, tabellary, tabellion, tabernacle, tabernacular, tabescent, tabific and 930 more...
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Interesting words
A list of words that are odd or words that I have looked up.
concupiscence, brize, scree, scoria, forestaff, spanaemia, valetudinarianism, distasture, pyrethrum, laudanum, gentian, bicameral and 11250 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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