/ Dictionary / Index L langoustine: Meaning and Definition of Find definitions for: lan•gous•tine Pronunciation: (lang"gu-stēn'), [key] — n. a large prawn, Nephrops norvegicus, used for food. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: langoustine (Thesaurus) langouste* langrage Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language