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sounding balloon

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noun Meteorology.
  1. a balloon carrying instruments aloft to make atmospheric measurements, especially a radiosonde balloon.
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Origin of sounding balloon

First recorded in 1900–05
Also called weather balloon.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sounding balloon

Historical Examples

  • The average height of sounding-balloon ascents is about ten miles.

    Meteorology

    Charles Fitzhugh Talman

  • By means of the sounding-balloon the air is explored to heights of twenty miles and more!

    The Mentor: The Weather

    Charles Fitzhugh Talman