radiosondeEnglishOxford Dictionary of Englishradiosonde /ˈreɪdiə(ʊ)sɒnd / ▸ noun an instrument carried by balloon or other means to various levels of the atmosphere and transmitting measurements by radio. – ORIGIN 1930s: from radio- (relating to broadcasting) + German Sonde ‘probe’.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
