at·mom·e·ter ( t-m m  -t r)n. An instrument that measures the rate of water evaporation. [Greek atmos, vapor; see atmosphere + -meter.] at  mo·metric (-m -m trk) adj.at·mom e·try n. |
atmometer [ætˈmɒmɪtə]
n
(Physics / General Physics) (Engineering / Tools) an instrument for measuring the rate of evaporation of water into the atmosphere Also called evaporimeter evaporometer
atmometry n
| atmometer (t-mm-tr) 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. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | atmometer - an instrument that measures rate of evaporation of water measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something |
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