Definition of pilot balloon in English:

pilot balloon

Syllabification: pi·lot bal·loon

noun

A small meteorological balloon used to track air currents.
More example sentences
  • Wind measurements were performed every 4 hours by tracking the ascent of a pilot balloon by radar.
  • This computes a vertical profile of wind direction and speed given the radio telemetry observations of a pilot balloon.
  • With the growth of aviation activity in the country, pilot balloon observations were started in 1928 to generate daily upper air wind data for pilots.

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