/ Dictionary / Index G ground sloth: Meaning and Definition of Find definitions for: ground' sloth" Pronunciation: [key] any of various extinct large, edentate mammals from the Pleistocene Epoch of North and South America resembling modern sloths but living on the ground rather than in trees. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. groundskeeper ground sluice Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language