/ Dictionary / Index K kangaroo rat: Meaning and Definition of Find definitions for: kangaroo' rat" Pronunciation: [key] any of various small jumping rodents of the family Heteromyidae, of Mexico and the western U.S. an Australian desert rodent of the genus Notomys. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. kangaroo court kangaroo vine Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language