[pluh-thiz-muh-graf, -grahf]
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 noun suffix) + -o- + -graph; first coined in It as pletismografo

plethysmographic [pluh-thiz-muh-graf-ik] , adjective
plethysmography [pleth-iz-mog-ruh-fee] , noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To plethysmographic
World English Dictionary
plethysmograph (pləˈθɪzməˌɡrɑːf, -ˌɡræf, -ˈθɪs-)
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]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

plethysmograph ple·thys·mo·graph (plě-thĭz'mə-grāf', 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.

ple·thys'mo·graph'ic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature