rheographn.

Brit.

/ˈriːə(ʊ)ɡrɑːf/,

/ˈriːə(ʊ)ɡraf/, U.S.

/ˈrioʊˌɡræf/,

/ˈriəˌɡræf/

Forms: 1800s– rheograph, 1900s– reograph.

Origin: Formed within English, by compounding. Etymons: rheo- comb. form, -graph comb. form.

Etymology: < rheo- comb. form + -graph comb. form. In sense 1 after French rhéographe (1881 in the passage translated in quot. 1884). With sense 2 compare earlier rheogram n., rheography n.

1. An instrument for measuring variations in current or voltage. Cf. rheometer n. 1. Now disused.

ΚΠ

1884 C. H. d'E. Leppington tr. Y. Guyot Princ. Social Econ. i. ii. 24 The physicists register the intensity of electric currents by means of the rheograph.

1900 Nature 6 Dec. 142/2 In the rheograph..M. Abraham uses a galvanometer with a period of about 1/10th of a second.

1907 London, Edinb., & Dublin Philos. Mag. 6th Ser. 14 238 Various methods..have been employed for the direct demonstration of varying currents and potential differences. Most of the instruments designed for this purpose (oscillographs, rheographs, &c.) depend upon electromagnetic action.

2. Medicine and Physiology. An instrument used for rheography. Cf. rheometer n. 2.

ΘΚΠ

the world > health and disease > healing > diagnosis or prognosis > specific measuring or recording > [noun]

arteriography1833

pulmometry1835

pneumometry1853

sphygmography1859

spirometry1859

sphygmometry1867

pneumatometry1876

stethography1876

stethometry1876

cephalometry1881

haemautography1885

haemoglobinometry1887

pelvigraphy1890

plethysmography1890

sphygmomanometry1905

electrocardiography1910

phlebography1912

phonocardiography1913

T.P.R.1917

Fick('s) principle1920

pneumography1921

polygraphy1923

electromyography1926

oscillometry1927

pneumotachography1930

electroencephalography1935

oximetry1944

vectorcardiography1946

ballistocardiography1950

tympanometry1956

thermography1957

cystometry1959

spirography1959

rheograph1960

magnetocardiography1967

Fick method1968

magnetoencephalography1968

biofeedback1970

tympanography1977

1960 Lancet 3 Sept. 556/1 An ultrasonic rheograph, now available commercially in Japan, uses the Doppler effect to tackle the difficult problem of measuring flow-rate in an intact blood vessel.

1978 Nature 16 Feb. 602/1 The Salyut-6 tests have included electrocardiograms, encephalograms and rheograph and manometer investigations.

2005 Jrnl. Vascular Surg. 41 298/1 (caption) Assessment of venous refilling time..(analog recording by light reflexion rheograph).

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rheograph
释义	rheographn. Brit. /ˈriːə(ʊ)ɡrɑːf/, /ˈriːə(ʊ)ɡraf/, U.S. /ˈrioʊˌɡræf/, /ˈriəˌɡræf/ Forms: 1800s– rheograph, 1900s– reograph. Origin: Formed within English, by compounding. Etymons: rheo- comb. form, -graph comb. form. Etymology: < rheo- comb. form + -graph comb. form. In sense 1 after French rhéographe (1881 in the passage translated in quot. 1884). With sense 2 compare earlier rheogram n., rheography n. 1. An instrument for measuring variations in current or voltage. Cf. rheometer n. 1. Now disused. ΚΠ 1884 C. H. d'E. Leppington tr. Y. Guyot Princ. Social Econ. i. ii. 24 The physicists register the intensity of electric currents by means of the rheograph. 1900 Nature 6 Dec. 142/2 In the rheograph..M. Abraham uses a galvanometer with a period of about 1/10th of a second. 1907 London, Edinb., & Dublin Philos. Mag. 6th Ser. 14 238 Various methods..have been employed for the direct demonstration of varying currents and potential differences. Most of the instruments designed for this purpose (oscillographs, rheographs, &c.) depend upon electromagnetic action. 2. Medicine and Physiology. An instrument used for rheography. Cf. rheometer n. 2. ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > specific measuring or recording > [noun] arteriography1833 pulmometry1835 pneumometry1853 sphygmography1859 spirometry1859 sphygmometry1867 pneumatometry1876 stethography1876 stethometry1876 cephalometry1881 haemautography1885 haemoglobinometry1887 pelvigraphy1890 plethysmography1890 sphygmomanometry1905 electrocardiography1910 phlebography1912 phonocardiography1913 T.P.R.1917 Fick('s) principle1920 pneumography1921 polygraphy1923 electromyography1926 oscillometry1927 pneumotachography1930 electroencephalography1935 oximetry1944 vectorcardiography1946 ballistocardiography1950 tympanometry1956 thermography1957 cystometry1959 spirography1959 rheograph1960 magnetocardiography1967 Fick method1968 magnetoencephalography1968 biofeedback1970 tympanography1977 1960 Lancet 3 Sept. 556/1 An ultrasonic rheograph, now available commercially in Japan, uses the Doppler effect to tackle the difficult problem of measuring flow-rate in an intact blood vessel. 1978 Nature 16 Feb. 602/1 The Salyut-6 tests have included electrocardiograms, encephalograms and rheograph and manometer investigations. 2005 Jrnl. Vascular Surg. 41 298/1 (caption) Assessment of venous refilling time..(analog recording by light reflexion rheograph). This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1884
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