downstroke

[ doun-strohk ]
/ ˈdaʊnˌstroʊk /
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noun

a downward stroke, as of a machine part, piston, or the like.
a downward stroke in writing, often heavier and darker than an upward stroke.

Origin of downstroke

First recorded in 1850–55; down1 + stroke1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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