Definition of "plethysmography" []

• The diagnostic use of a plethysmograph. (noun)

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• "In the same issue of AJOG, Holly Hull from Columbia University, New York, NY, compared body weight and composition (air-displacement plethysmography) in 33 neonates born to mothers with a normal pregravid BMI to 39 neonates born to overweight/obese mothers with normal glucose tolerance."
• "The fellow is asked to undergo body plethysmography to understand the basic principles."
• "Pulmonary function tests in older children includes spirometry, whole body plethysmography, single and multiple breath nitrogen washout, carbon monoxide diffusion capacity, respiratory muscle strength and lung compliance."