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atmometer
[ at-mom-i-ter ]
noun
- an instrument for measuring the rate at which water evaporates.
atmometer
/ ætˈmɒmɪtə /
noun
- an instrument for measuring the rate of evaporation of water into the atmosphere Also calledevaporimeterevaporometer
atmometer
/ ăt-mŏm′ĭ-tər /
- An instrument that measures the rate of evaporation of water into the atmosphere. Atmometers usually measure the evaporation of water from a free water surface (such as a pan of water set into the ground so that the water's surface is even with the ground's surface) or from a porous, water-saturated surface (such as filter paper placed over a graduated cylinder of water). In the first type, the difference between the ground surface and the water level is used to calculate the volume of water that has evaporated in a given period of time. In the second type, the water volume is read directly from the graduated cylinder.
- Also called evaporimeter
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Derived Forms
- atˈmometry, noun
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Word History and Origins
Origin of atmometer1
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Example Sentences
Atmometer, an instrument for measuring the amount of evaporation from a moist surface in a given time.
From Project Gutenberg
Atmometer, at-mom′e-tėr, n. an instrument for measuring the rate of evaporation from a moist surface.
From Project Gutenberg
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