/ Dictionary / Index L long-lived: Meaning and Definition of Find definitions for: long-lived Pronunciation: (lông'līvd', -livd', long'-), [key] — adj. having a long life, existence, or duration: a long-lived man; long-lived fame. (of an object) lasting or functioning a long time: a long-lived battery. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: long-lived (Thesaurus) longliner Long March Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language