definitions
  • synonyms

rockshaft

[ rok-shaft, -shahft ]
/ ˈrɒkˌʃæft, -ˌʃɑft /

noun Machinery.

an oscillating shaft.

Nearby words

rockoon, rockrose, rockrose family, rocks, rocks in one's head, have, rockshaft, rockumentary, rockville, rockville centre, rockweed, rockwell

Origin of rockshaft

First recorded in 1870–75; rock2 + shaft
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for rockshaft

rockshaft

/ (ˈrɒkˌʃɑːft) /

noun

a shaft that rotates backwards and forwards rather than continuously, esp one used in the valve gear of a steam 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