| NOUN | artifact | 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) |
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| Meaning | 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). | |
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| Narrower | body plethysmograph | plethysmograph consisting of a chamber surrounding the entire body |
| digital plethysmograph | plethysmograph applied to a digit of the hand or foot to measure skin blood flow | |
| Broader | measuring instrument, measuring system, measuring device | instrument that shows the extent or amount or quantity or degree of something |
| Catalan | pletismografia | |
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