noun Etymology: International Scientific Vocabulary Date: 1937 a miniature radio transmitter that is carried aloft (as by an unmanned balloon) with instruments for sensing and broadcasting atmospheric conditions
RADIOSONDE
Meaning of RADIOSONDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012