UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/lɔ̃ɡœr/US:USA pronunciation: respellingUSA pronunciation: respelling(lông gûr, long-; Fr.n gœr)

Inflections of 'longueur' (nnoun: Refers to person, place, thing, quality, etc.): nplplural noun: Noun always used in plural form--for example, "jeans," "scissors.": longueurs

WordReference Random House Unabridged Dictionary of American English © 2020
lon•gueur  (lông gûr, long-; Fr.n gœr),USA pronunciation n., pl.  -gueurs 
    (lông gûr, long-; Fr.n gœr),USA pronunciation 
  1. Literaturea long and boring passage in a literary work, drama, musical composition, or the like:The longueurs in this book make it almost unreadable.
  • French: literally, length
  • 1815–25

Collins Concise English Dictionary © HarperCollins Publishers::
longueur /French: lɔ̃ɡœr/ n
  1. a period of boredom or dullness
Etymology: literally: length
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