plethysmographn.

Brit.

/plᵻˈθɪzməɡrɑːf/,

/plᵻˈθɪzməɡraf/, U.S.

/pləˈθɪzməˌɡræf/

Forms: 1800s– plethismograph, 1800s– plethysmograph, 1900s– pletismograph (irregular, rare), 1900s– pletysmograph (irregular, rare).

Origin: A borrowing from Greek, combined with an English element; apparently modelled on an Italian lexical item. Etymons: Greek πληθυσμός , -graph comb. form.

Etymology: < Byzantine Greek πληθυσμός making multiple, pluralization ( < Hellenistic Greek πληθύνειν to increase, multiply ( < ancient Greek πληθύς throng, crowd, majority, ultimately < πλῆθος great number, mass: see plethodontid n. and adj.) + -σμός , extended form of -μος , suffix forming nouns) + -graph comb. form, apparently after Italian pletismografo (1883 or earlier; attributed to A. Mosso (compare quot. 1872), but Mosso's coinage has not been traced). Compare French pléthysmographe (1888 or earlier).

Physiology.

An instrument for recording and measuring variation in the volume of a part of the body, or of the whole body, esp. as caused by changes in blood pressure.

ΘΚΠ

the world > life > biology > laboratory analysis > apparatus > [noun] > for measuring

osmometer1854

plethysmograph1872

respirometer1896

turbidimeter1905

Warburg1930

stabilimeter1940

the world > life > the body > study of body > study of vascular system > [noun] > instruments used in measuring

plethysmograph1872

1872 Sci. Amer. July 403/1 By using two plethysmographs, D^r Mosso has obtained pen traces representing..valuable physiological data leading to the demonstration of the most important phenomena of the blood vessels.

1882 Pop. Sci. Monthly Mar. 578 The plethysmograph..measures the amount of blood sent to the brain in any particular process of thought, and records the exact time for each process.

1912 Philos. Trans. (Royal Soc.) B. 202 13 A frog's ventricle, which had been perfused with venom solution until the wall was freely permeable, was removed from the plethysmograph.

1972 Eng. Stud. 53 76 Measurements were made..of the variations in volume of the air in the lungs. This..involved the use of a plethysmograph, a rigid airtight container enclosing the subject entirely except for head and neck.

1995 Guardian 24 Aug. i. 6/5 The penile plethysmograph test (PPG) consists of a mercury-filled loop fitted to the subject's penis which measures the degree of arousal when shown images or played audio tapes.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	plethysmograph
释义	plethysmographn. Brit. /plᵻˈθɪzməɡrɑːf/, /plᵻˈθɪzməɡraf/, U.S. /pləˈθɪzməˌɡræf/ Forms: 1800s– plethismograph, 1800s– plethysmograph, 1900s– pletismograph (irregular, rare), 1900s– pletysmograph (irregular, rare). Origin: A borrowing from Greek, combined with an English element; apparently modelled on an Italian lexical item. Etymons: Greek πληθυσμός , -graph comb. form. Etymology: < Byzantine Greek πληθυσμός making multiple, pluralization ( < Hellenistic Greek πληθύνειν to increase, multiply ( < ancient Greek πληθύς throng, crowd, majority, ultimately < πλῆθος great number, mass: see plethodontid n. and adj.) + -σμός , extended form of -μος , suffix forming nouns) + -graph comb. form, apparently after Italian pletismografo (1883 or earlier; attributed to A. Mosso (compare quot. 1872), but Mosso's coinage has not been traced). Compare French pléthysmographe (1888 or earlier). Physiology. An instrument for recording and measuring variation in the volume of a part of the body, or of the whole body, esp. as caused by changes in blood pressure. ΘΚΠ the world > life > biology > laboratory analysis > apparatus > [noun] > for measuring osmometer1854 plethysmograph1872 respirometer1896 turbidimeter1905 Warburg1930 stabilimeter1940 the world > life > the body > study of body > study of vascular system > [noun] > instruments used in measuring plethysmograph1872 1872 Sci. Amer. July 403/1 By using two plethysmographs, D^r Mosso has obtained pen traces representing..valuable physiological data leading to the demonstration of the most important phenomena of the blood vessels. 1882 Pop. Sci. Monthly Mar. 578 The plethysmograph..measures the amount of blood sent to the brain in any particular process of thought, and records the exact time for each process. 1912 Philos. Trans. (Royal Soc.) B. 202 13 A frog's ventricle, which had been perfused with venom solution until the wall was freely permeable, was removed from the plethysmograph. 1972 Eng. Stud. 53 76 Measurements were made..of the variations in volume of the air in the lungs. This..involved the use of a plethysmograph, a rigid airtight container enclosing the subject entirely except for head and neck. 1995 Guardian 24 Aug. i. 6/5 The penile plethysmograph test (PPG) consists of a mercury-filled loop fitted to the subject's penis which measures the degree of arousal when shown images or played audio tapes. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1872
随便看	spectre insect spectre knight spectre monarch spectre shape spectre ship spectre tarsier spectre train spectre tribe spectre woman spectre-bark spectre-bat spectre-candle spectre-chimera spectre-crab spectre-doubt spectre-faint spectre-fashion spectre-fighting spectre-haunted spectre-horse spectre-lean spectre-lemur spectre-like spectre-looking spectre-mantis