BALLON D'ESSAI
Meaning of BALLON D'ESSAI in English
/bann lawonn de se"/ , pl. ballons d'essai /bann lawonn de se"/ . French.
See trial balloon (def. 1).
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012