
1) Measuring device 2) Measuring instrument 3) Measuring system 4) Medical equipment
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A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains). ==Organs studied== ===Lungs=== Pulmonary plethysmographs are commonly used to measure the functional residual capacity (FRC) of the lungs—the volume in the lungs when the...
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http://en.wikipedia.org/wiki/Plethysmograph

instrument for measuring change in body part size due to blood flow
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• (n.) An instrument for determining and registering the variations in the size or volume of a limb, as the arm or leg, and hence the variations in the amount of blood in the limb.
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(plә-thiz´mo-graf) any device for measuring and recording variations in the volume of an organ, part, or limb. body plethysmograph a device used in pulmonary function tests to measure parameters such as functional residual capacity and the compliance of the lung and thorax; it consi...
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http://www.encyclo.co.uk/local/21001

Pleth'ys·mo·graph noun [ Greek ... an enlargement + -graph .] (Physiol.) An instrument for determining and registering the variations in the size or volume of a limb, as the arm or leg, and hence the variations in the amount of blood in the limb. -- Pleth`ys*mo*graph'ic
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http://www.encyclo.co.uk/webster/P/107

Type: Term Pronunciation: ple-thiz′mō-graf Definitions: 1. A device for measuring and recording changes in volume of a part, organ, or whole body.
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http://www.medilexicon.com/medicaldictionary.php?t=69673

[
n] - 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)
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http://www.webdictionary.co.uk/definition.php?query=plethysmograph

plethysmograph An instrument for determining and registering the variations in the size or volume of a limb; such as, the arm or leg, and therefore the variations in the amount of blood in the limb.
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noun 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)
Found on
https://www.encyclo.co.uk/local/20974
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