Meaning of potometer

po•tom•e•ter

Pronunciation: (pu-tom'i-tur), [key]
— n. Meteorol.
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.