sounding balloon

noun

, Meteorology.

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

Word History and Origins

Origin of sounding balloon¹

First recorded in 1900–05

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg