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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.


plethysmograph

/ -ˌɡræf; pləˈθɪzməˌɡrɑːf; -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
“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
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Other Words From

  • ple·thys·mo·graph·ic [pl, uh, -thiz-m, uh, -, graf, -ik], adjective
  • pleth·ys·mog·ra·phy [pleth-iz-, mog, -r, uh, -fee], noun
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Word History and Origins

Origin of plethysmograph1

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
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Word History and Origins

Origin of plethysmograph1

C19: from Greek plēthusmos enlargement + graphein to write
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Example Sentences

Strapped to their type of plethysmograph, they responded in predictable patterns she labelled "category specific".

If this proved to be true, what would it mean for all these plethysmograph studies?

From Salon

Researchers at the Chicago foundation asked men attached to a plethysmograph, a device measuring changes in volume in various parts of the body, to sniff 30 odors.

"That is my new plethysmograph," remarked Gaines, noting with some satisfaction how Kennedy had singled it out.

Besides, I had read articles about the chronoscope, the plethysmograph, the sphygmograph, and others of the new psychological instruments.

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