ple·thys·mo·graph (pl -th z m -gr f , pl-)n. 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 pl  thusmos, increase (from plth nein, to increase, from plths, quantity, from plthein, to be full; see pel-1 in Indo-European roots) + -graph.]ple·thys mo·graphic adj.ple·thys mo·graphi·cal·ly adv.pleth ys·mogra·phy (plthz-m gr-f) n. |
plethysmograph [pləˈθɪzməˌgrɑːf -ˌgræf -ˈθɪs-]
n
(Life Sciences & Allied Applications / Physiology) 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
[from Greek plēthusmos enlargement + graphein to write]
ThesaurusLegend: Synonyms Related Words Antonyms
| 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 measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something |
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