īˈänəˌsänd noun
Etymology: International Scientific Vocabulary iono- (as in ionosphere ) + sonde
: a device for determining and recording the heights of ionized layers in the ionosphere by shortwaves reflected from them
īˈänəˌsänd noun
Etymology: International Scientific Vocabulary iono- (as in ionosphere ) + sonde
: a device for determining and recording the heights of ionized layers in the ionosphere by shortwaves reflected from them
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012