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Related to plethysmograph: body plethysmograph


 (plĕ-thĭz′mə-grăf′, plə-)
An instrument that measures variations in the size of an organ or body part on the basis of the amount of blood passing through or present in the part.

[Greek plēthusmos, increase (from plēthūnein, to increase, from plēthūs, quantity, from plēthein, to be full; see pelə- in Indo-European roots) + -graph.]

ple·thys′mo·graph′ic adj.
pleth′ys·mog′ra·phy (plĕth′ĭz-mŏg′rə-fē) n.


(pləˈθɪzməˌɡrɑːf; -ˌɡræf; -ˈθɪs-)
(Physiology) physiol a device for measuring the fluctuations in volume of a bodily organ or part, such as those caused by variations in the amount of blood it contains
[C19: from Greek plēthusmos enlargement + graphein to write]


(pləˈθɪz məˌgræf, -ˌgrɑf)

a device for measuring and recording changes in the volume of the body or of a body part or organ.
[1870–75; < Greek plēthysm(ós) increase, multiplication (plēthý(nein) to increase, derivative of plêthos large number, crowd + -smos, variant of -mos n. suffix) + -o- + -graph; first coined in Italian as pletismografo]
ple•thys`mo•graph′ic (-ˈgræf ɪk) adj.
pleth•ys•mog•ra•phy (ˌplɛθ ɪzˈmɒg rə fi) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.plethysmograph - a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)
body plethysmograph - plethysmograph consisting of a chamber surrounding the entire body; used in studies of respiration
digital plethysmograph - plethysmograph applied to a digit of the hand or foot to measure skin blood flow
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
References in periodicals archive ?
The paw edema volume was measured by dipping the hind paw till the level of malleolus in the mercury column of plethysmograph.
The subject of part a of the public contract is: - delivery of 1 plethysmograph cabin.
Briefly, the mice (n=6/group) were anesthetized, tracheotomized, cannulated, and kept within a ventilated body plethysmograph chamber.
Heart rate variability (HRV) of the practitioners was measured for 5 minutes using a finger plethysmograph and HRV monitoring device (Medicore SA-3000p) as an objective measure of relaxation and autonomic nervous system balance.
Assessment of an infant whole-body plethysmograph using an infant lung function model.
While each participant watched 40 music video excerpts of one-minute duration each, 32-dimensional EEG signals using 10-20 international system [30] and various peripheral physiological signals--Galvanic skin response (GSR) [24], respiration amplitude, skin temperature, electrocardiogram (ECG) [37], blood volume by plethysmograph, electromyograms of Zygomaticus and Trapezius muscles (EMG) [37], and electrooculogram (EOG) [17], skin temperature and respiration--were collected.
plethysmograph examinations" violated substantive due process on the ground that " [t] here is a line at which the government must stop" and that "[p]enile plethysmography testing crosses it" (quoting United States v.
Spirometric tests were performed at rest before exercise using a body plethysmograph (Sensor Medics V6200 Auto box; Sensor Medics Co.
Thoracoabdominal plethysmograph oro-nasal temperature thermistor and nasal-cannula-pressure transducer system were used to identify apnoeas and hypopnoeas.
Blood pressure and heart rate were measured using a cuff-tail plethysmograph (Leitica 5001).