/ Dictionary / Index P psychoacoustics: Meaning and Definition of Find definitions for: psy•cho•a•cous•tics Pronunciation: (sī"kō-u-k'stiks or, esp. Brit., -u-kou'-), [key] — n. (used with a sing. v.) the study of sound perception. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. psycho psychoactive 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