/ Dictionary / Index P puzzle box: Meaning and Definition of Find definitions for: puz'zle box" Pronunciation: [key] — Psychol. Psychol. an enclosure, used in experiments in animal learning, from which an animal must escape or in which it must manipulate various devices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. puzzle puzzleheaded Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language