Potometer

A potometer (from Greek ποτό = drunken, and μέτρο = measure) —sometimes known as a transpirometer— is a device used for measuring the rate of water uptake of a leafy shoot. The causes of water uptake are photosynthesis and transpiration. Everything must be completely water tight so that no leakage of water occurs. There are two main t...
Found on http://en.wikipedia.org/wiki/Potometer

potometer

instrument measuring rate at which plants absorb water
Found on http://phrontistery.info/p.html

potometer

potometer An instrument used to determine the rate of a leafy plant's transpiration by measuring water uptake. Potometers are said to be notoriously difficult to set up because air bubbles in the xylem of the plant or in the apparatus itself can prevent the setup from working properly. Related ...
Found on http://www.wordinfo.info/words/index/info/view_unit/1740/
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