upstroke

[ uhp-strohk ]
/ ˈʌpˌstroʊk /
|

noun

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

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

British Dictionary definitions for upstroke

upstroke

/ (ˈʌpˌstrəʊk) /

noun

  1. an upward stroke or movement, as of a pen or brush
  2. 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