from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. weather balloon
from the GNU version of the Collaborative International Dictionary of English
- An unmanned balloon sent aloft for meteorological or aëronautic purposes.
Sorry, no etymologies found.
The data obtained in reports received are studied in relation to many factors such as guided missile research activity, weather and other atmospheric sounding balloon launchings, commercial and military aircraft flights, flights of migratory birds, and other considerations, to determine possible explanations for sightings.