plethysmograph(redirected from impedance plethysmograph)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to impedance plethysmograph: Meleney ulcer
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.]
pleth′ys·mog′ra·phy (plĕth′ĭz-mŏg′rə-fē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
plethysmograph(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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ple•thys•mo•graph(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Switch to new thesaurus
|Noun||1.||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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.