/ Dictionary / Index Z zoo: Meaning and Definition of Find definitions for: zoo Pronunciation: (z), [key] — pl. zoos. Also calleda parklike area in which live animals are kept in cages or large enclosures for public exhibition. a place, activity, or group marked by chaos or unrestrained behavior. zoo- Pronunciation: [key] a combining form meaning “living being,” “animal,” used in the formation of compound words: zoometry; zooplankton. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: zoo (Thesaurus) zonule zoochem. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language