plethysmogram

noun

ple·​thys·​mo·​gram ple-ˈthiz-mə-ˌgram How to pronounce plethysmogram (audio)
plə-
: a tracing made by a plethysmograph

Word History

Etymology

probably borrowed from German Plethysmogramm, from plethysmo- (in Plethysmograph plethysmograph) + -gramm -gram

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of plethysmogram was in 1894

Rhymes for plethysmogram

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Browse Nearby Words

plethron
plethysmogram
plethysmograph
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Cite this Entry

“Plethysmogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plethysmogram. Accessed 2 Apr. 2025.

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Medical Definition

plethysmogram

noun
ple·​thys·​mo·​gram ple-ˈthiz-mə-ˌgram, plə- How to pronounce plethysmogram (audio)
: a tracing made by a plethysmograph
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