/ Dictionary / Index W water meter: Meaning and Definition of Find definitions for: wa'ter me"ter Pronunciation: [key] a device for measuring and registering the quantity of water that passes through a pipe or other outlet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. watermelon water milfoil Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language