ballon d'essai

[ ba-lawn de-se ]
/ ba lɔ̃ dɛˈsɛ /

noun, plural bal·lons d'es·sai [ba-lawn de-se]. /ba lɔ̃ dɛˈsɛ/. French.

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British Dictionary definitions for ballon d'essai

ballon d'essai
/ (bæˈlõ dɛˈseɪ) /

noun plural ballons d'essai (bæˈlõ dɛˈseɪ)

a project or policy put forward experimentally to gauge reactions to itCompare trial balloon

Word Origin for ballon d'essai

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