A scientific instrument designed to measure the rate of evaporation from soil or water surfaces; similar to an evaporimeter.
From 'evapor-' (Latin 'evaporare') plus '-meter' (Greek 'metron' meaning 'measure'). This is essentially a synonym for evaporimeter, with slightly different construction showing the '-ometer' suffix variant.
Farmers depend on evaporometer readings to know when to irrigate crops—if evaporation is high due to heat and wind, they need to water more frequently to keep plants healthy.
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