[ih-vap-oh-tran-spuh-rey-shuh n]

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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for evapotranspiration



the return of water vapour to the atmosphere by evaporation from land and water surfaces and by the transpiration of vegetation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012