weather balloon

English

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Noun

weather balloon (plural weather balloons)

  1. (meteorology) A balloon that carries meteorological instruments aloft in order to measure, record and return data concerning atmospheric pressure, temperature and humidity.
  2. (ufology, sarcastic) A skeptical explanation to debunk a UFO sighting that a believer regards as silly, illogical or disingenuous.
    Synonyms: swamp gas, pelicanist

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