plethysmograph

[ pluh-thiz-muh-graf, -grahf ]

noun
  1. a device for measuring and recording changes in the volume of the body or of a body part or organ.

Origin of plethysmograph

1
First recorded in 1870–75; from 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 Italian as pletismografo

Other words from plethysmograph

  • ple·thys·mo·graph·ic [pluh-thiz-muh-graf-ik], /pləˌθɪz məˈgræf ɪk/, adjective
  • pleth·ys·mog·ra·phy [pleth-iz-mog-ruh-fee], /ˌplɛθ ɪzˈmɒg rə fi/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for plethysmograph

plethysmograph

/ (pləˈθɪzməˌɡrɑːf, -ˌɡræf, -ˈθɪs-) /


noun
  1. 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

Origin of plethysmograph

1
C19: from Greek plēthusmos enlargement + graphein to write

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012