/ Dictionary / Index K koala: Meaning and Definition of Find definitions for: ko•a•la Pronunciation: (kō-ä'lu), [key] — n. a sluggish, tailless, gray, furry, arboreal marsupial, Phascolarctos cinereus, of Australia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: koala (Thesaurus) koa koan Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language