from The American Heritage® Dictionary of the English Language, 4th 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An instrument used to measure tension or pressure
from the GNU version of the Collaborative International Dictionary of English
- 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.
- n. An instrument for measuring tension, esp. that of the eyeball.
from The 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.
- n. In medicine, an instrument for measuring the degree of tension in the eyeball in cases of glaucoma.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
Greek tonos, tension; see tone + -meter.(American Heritage® Dictionary of the English Language, Fourth Edition)