sounding balloon

noun Meteorology.

a balloon carrying instruments aloft to make atmospheric measurements, especially a radiosonde balloon.

Origin of sounding balloon

First recorded in 1900–05
Also called weather balloon. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sounding balloon

  • 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