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ballon d'essai

[ba-lawn de-se] /ba lɔ̃ dɛˈsɛ/
noun, plural ballons d'essai
[ba-lawn de-se] /ba lɔ̃ dɛˈsɛ/ (Show IPA).
French. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for ballon d'essai

ballon d'essai

/bæˈlõ dɛˈseɪ/
noun (pl) ballons d'essai (bæˈlõ dɛˈseɪ)
a project or policy put forward experimentally to gauge reactions to it Compare trial balloon
Word Origin
C19: from French, literally: trial balloon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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