Definition of downwash
: an airstream directed downward (as by an airfoil)
Recent Examples of downwash from the Web
The ground blocks the trailing vortices of the wing and decreases downwash.
Other equipment in the cavernous space can replicate the downwash from rescue helicopters, and generate rain, darkness, 120-mile-per-hour winds, smoke and fire.
Between them, though, is a downwash that creates extra drag on the plane.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'downwash.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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