upstroke

[uhp-strohk]

noun

an upward stroke, especially of a pen or pencil, or of a piston in a vertical cylinder.

Nearby words

Origin of upstroke

First recorded in 1820–30; up- + stroke¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for upstroke

After the downstroke is completed, the teeth A will cut on the upstroke, the teeth B cutting on the downstroke, etc.
The Boy Mechanic, Book 2|Various
Her axe shone, on the upstroke, on the downstroke, as she hacked at his hand.
The Were-Wolf|Clemence Housman
During an upstroke this closes, and the other opens; the reverse happening during a downstroke.
How it Works|Archibald Williams
During the upstroke the cup collapses inwards and allows air to pass by it.
How it Works|Archibald Williams

The stroke on the left side of that capital is first a down stroke, which is almost exactly retracted by an upstroke.
Warren Commission (4 of 26): Hearings Vol. IV (of 15)|The President's Commission on the Assassination of President Kennedy

British Dictionary definitions for upstroke

upstroke

noun

an upward stroke or movement, as of a pen or brush
the mark produced by such a stroke

the upward movement of a piston in a reciprocating engine

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012