/ Dictionary / Index P paca: Meaning and Definition of Find definitions for: pa•ca Pronunciation: (pä'ku, pak'u), [key] — n. a large, white-spotted, almost tailless rodent, Agouti paca, of Central and South America, having features resembling a guinea pig and rabbit: valued as food. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paca (Thesaurus) pac Pacaraima Mountains Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language