radiosonde Hear it!

radiosonde definition

☆ radio·sonde (rā′dē ō sänd′)

noun

a compact package of meteorological instruments and a radio transmitter, usually carried aloft by a small balloon to measure and transmit to ground observers temperature, pressure, and humidity data from the upper atmosphere

Etymology: Fr < radio (see radio) + sonde, a sounding line < sonder, to sound

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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