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[pahy-buh l] /ˈpaɪ bəl/
noun, Meteorology
the measurement and computation of the speed and direction of winds by theodolitic tracking of a pilot balloon.
Compare rabal.
Origin of pibal
pi(lot) bal(loon) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for pibal
  • Radiosonde and pibal observations are disseminated for operational use by means of various communication services described below.

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