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Dictionary

po•tom•e•ter

Pronunciation: (pu-tom'i-tur), [key]
—n. Meteorol.
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.

Potomac fever

potoo

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