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sounding balloon

noun, Meteorology
a balloon carrying instruments aloft to make atmospheric measurements, especially a radiosonde balloon.
Also called weather balloon.
Origin of sounding balloon
1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Historical Examples
  • By means of the sounding-balloon the air is explored to heights of twenty miles and more!

    The Mentor: The Weather Charles Fitzhugh Talman
  • The average height of sounding-balloon ascents is about ten miles.

    Meteorology Charles Fitzhugh Talman

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