noun
- 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. ).
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). plethysmograph. Retrieved September 22, 2026, from http://smartdefine.org/plethysmograph/definitions/1206889 |
| Chicago | WordNet. 2010. "plethysmograph" http://smartdefine.org/plethysmograph/definitions/1206889 (accessed September 22, 2026). |
| Harvard | WordNet 2010, plethysmograph, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/plethysmograph/definitions/1206889>. |
| MLA | WordNet. "plethysmograph" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/plethysmograph/definitions/1206889> |