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updraft

[uhp-draft, -drahft]
noun
  1. the movement upward of air or other gas.
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Origin of updraft

late Middle English word dating back to 1400–50; see origin at up-, draft
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for updraft

Historical Examples of updraft

  • I could stand to have another hit ready when Updraft petered out.

    The Mind Digger

    Winston Marks

  • Parodisiac was much too good to hold for the closing of Updraft.

    The Mind Digger

    Winston Marks

  • The updraft gave out and the rate of climb meter began to register a drop.

    Frigid Fracas

    Dallas McCord Reynolds

  • Updraft did all right in the sticks, but it was when we opened on Broadway that it began to coin money.

    The Mind Digger

    Winston Marks

  • And no patch of blue sky ever looked so good as that sky above the mountain, swept clean of the rain curtain by the updraft.

Word Origin and History for updraft

n.

"rising air current," 1909, from up + draft (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper
updraft in Science

updraft

[ŭp′drăft′]
  1. An upward current of warm, moist air. With enough moisture, the current may visibly condense into a cumulus or cumulonimbus cloud. Compare downdraft.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.