evapotranspiration [ih-vap-oh-tran-spuh-rey-shuh n] Word Origin noun Meteorology.
- the process of transferring moisture from the earth to the atmosphere by evaporation of water and transpiration from plants.
- Also called flyoff, water loss. the total volume transferred by this process.
Origin of evapotranspiration First recorded in 1945–50; evapo(ration) + transpiration British Dictionary definitions for evapotranspiration evapotranspiration noun
- the return of water vapour to the atmosphere by evaporation from land and water surfaces and by the transpiration of vegetation