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pilot balloon

noun
1.
a balloon for the visual observation of upper-atmosphere wind currents.
Origin
1840-1850
1840-50
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for pilot balloon
  • Check to make sure no air is leaking around the tube and feel the pilot balloon for stiffness.
British Dictionary definitions for pilot balloon

pilot balloon

noun
1.
a meteorological balloon used to observe air currents
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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Difficulty index for pilot balloon

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Word Value for pilot

7
9
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