Radiosonde is a term that often refers to a weather balloon that helps collect atmospheric data like temperature, humidity, and air pressure. However, there are several other synonyms for this term. Some of these synonyms include "aerosonde," "meteorological balloon," "weather balloon," "sonde," "upper-air instrument," and "atmospheric sounding device." These instruments help meteorologists and scientists study and understand the Earth's atmosphere, which can help predict weather conditions, climate change patterns, and even study the impact of pollution. These devices play a crucial role in the field of meteorology and help scientists to gain a better understanding of atmospheric sciences.