/ Dictionary / Index B black wattle: Meaning and Definition of Find definitions for: black' wat'tle Pronunciation: [key] a tree, Acacia mearnsii, native to Australia and Tasmania, having bark used in tanning. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blackwater fever blackweed 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