proefballon
Dutch
Etymology
proef 'test' + ballon 'balloon'
Pronunciation
Audio (file)
Noun
proefballon m (plural proefballonnen, diminutive proefballonnetje n)
- A balloon used as a probe or to carry some test - or experimental device
- (figuratively) (often in the diminutive: proefballonnetje) A feeler, kite, to test reactions