Dictionary.com
definitions
  • synonyms

countershaft

[koun-ter-shaft, -shahft]
See more synonyms for countershaft on Thesaurus.com
noun Machinery.
  1. jackshaft(def 1).
Show More

Origin of countershaft

First recorded in 1860–65; counter- + shaft
Related formscoun·ter·shaft·ing, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for countershaft

Historical Examples


British Dictionary definitions for countershaft

countershaft

noun
  1. an intermediate shaft that is driven by, but rotates in the opposite direction to, a main shaft, esp in a gear train
Show More
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