/ Dictionary / Index L long-playing: Meaning and Definition of Find definitions for: long-play•ing Pronunciation: (lông'plā'ing, long'-), [key] — adj. of or pertaining to microgroove records devised to be played at 33 revolutions per minute. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: long-playing (Thesaurus) long play long primer Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language