aero·sonde | \ ˈer-ō-ˌsänd \
plural aerosondes

Definition of aerosonde 

: a radiosonde carried by a remotely piloted aircraft The researchers have built three robotic flying weather stations, called aerosondes, and tested them on short flights over the Pacific.Discover, December 1998

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First Known Use of aerosonde

1991, in the meaning defined above

History and Etymology for aerosonde

aero- + sonde

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The first known use of aerosonde was in 1991

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