ballon d'essai

US:USA pronunciation: respellingUSA pronunciation: respelling(ba lôn de se′)


WordReference Random House Unabridged Dictionary of American English © 2025
bal•lon d'es•sai  (ba lôn de se′),USA pronunciation pl. bal•lons d'es•sai (ba lôn de se′).USA pronunciation [French.]
  1. See trial balloon (def. 1).


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