/ Dictionary / Index W water loss: Meaning and Definition of Find definitions for: wa'ter loss" Pronunciation: [key] evapotranspiration (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Waterloo water main Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language