tonometern.
/təʊˈnɒmɪtə/ 1. Music. An instrument for determining the pitch of tones; spec. a tuning-fork, or a graduated set of tuning-forks, as that made by Scheibler about 1833, for determining the exact number of vibrations per second which produce a given tone.
ΘΚΠ
society > leisure > the arts > music > musical sound > pitch > [noun] > instrument for measuring pitch
tonometer1725
harmonometer1823
intonator1876
1725 A. Warren (title) The Tonometer, explaining and demonstrating.. all the 32 distinct and different Notes, adjuncts or Supplements contained in each of four Octaves inclusive, of the Gamut.
1840 W. Whewell Philos. Inductive Sci. I. i. iv. iv. 312 The monochord is a complete and perfect tonometer.
1876 A. J. Ellis in Athenæum 2 Dec. 731/1 Tonometry was first placed on a scientific basis in a..pamphlet..published at Essen, 1834, and entitled ‘The Physical and Musical Tonometer’ (Tonmesser), which proves by the pendulum, visibly to the eye, the absolute vibrations of tones,..invented and executed by Heinrich Scheibler.
1881 J. Broadhouse Student's Helmholtz 104 Appunn's reed tonometer is a mode of measuring the pitch by means of harmonium reeds.
1885 Athenæum 18 Apr. 513/3 A class is devoted to..tuning-forks, pitch-pipes, sirens, tonometers, and other appliances for the determination of pitch.
2. An instrument for measuring (a) tension of the eyeball in glaucoma, (b) intravascular blood-pressure, (c) strains within a liquid.
ΘΚΠ
the world > health and disease > healing > diagnosis or prognosis > specific measuring or recording > [noun] > specific measuring or recording instruments > for blood-pressure
haemodynamometer1835
haemometer1872
tonometer1876
sphygmomanometer1891
Gaertner's tonometer1901
the world > health and disease > healing > diagnosis or prognosis > specific measuring or recording > [noun] > specific measuring or recording instruments > for tension of eyeball
tonometer1876
(a)
(b)1898 T. C. Allbutt et al. Syst. Med. V. 924 If the ventricle of a frog beat in a tonometer under a supply of blood from a pressure bottle, at varying heights, curves may be taken to measure the volume of the ventricle.(c)1909 in Cent. Dict. Suppl. 1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. §3674 Tonometer, for Measuring the Hardness and Convexity of the Eye.
1879 J. P. Smith Glaucoma 14 A distinct indication of a different tension was given by the tonometer.
Derivatives
tonometric adj. /tɒnəʊˈmɛtrɪk/ of or pertaining to tonometry.
/tɒnəʊˈmɛtrɪk/ of or pertaining to tonometry.ΘΚΠ
society > leisure > the arts > music > musical sound > pitch > [adjective] > instrument for measuring pitch
tonometric1901
1901 Nature 24 Oct. 630/2 He also presents a tonometric apparatus, consisting of about 670 diapasons or tuning forks.
1902 Encycl. Brit. XXX. 61/1 At the Philadelphia Exposition of 1876 great admiration was expressed for a tonometric apparatus of his [König's] manufacture.
toˈnometry n. the using of a tonometer; measurement of vibrations of sound or of tension.
ΘΚΠ
the world > health and disease > healing > diagnosis or prognosis > specific measuring or recording > [noun] > of the eye and its parts
tonometry1876
electronystagmography1929
pupillography1940
pupillometrics1968
society > leisure > the arts > music > study or science of music > [noun] > of acoustical aspects
harmonics1837
tonometry1876
1876Tonometry [see sense 1].
1899 New Sydenham Soc. Lexicon Tonometry, measurement of tension, as of the eyeball.
This entry has not yet been fully updated (first published 1913; most recently modified version published online December 2018).
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n.1725