potometer

American

[puh-tom-i-ter] / pəˈtɒm ɪ tər /

noun

Meteorology.

an instrument for measuring the amount of water that a plant loses through transpiration, consisting of a sealed vessel of water with a cutting inserted in such a way that moisture can escape only through absorption and transpiration.

potometer British

/ pəˌtɒmɪtə /

noun

an apparatus that measures the rate of water uptake by a plant or plant part

"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

Etymology

Origin of potometer

1880–85; < Greek potó ( n ) drink + -meter

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023