weather balloon

(redirected from tetroon)
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weather balloon

n.
A balloon used to carry instruments aloft to gather meteorological data in the atmosphere.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
Dickson, 1966: Tetroon trajectories in an urban atmosphere.
Migration pathways of corn earworm (Lepidoptera: Noctuidae) indicated by tetroon trajectories.