adjective, adverb

in a direction opposite to that of the normal rotation of the hands of a clock; not clockwise.

Also contraclockwise; especially British, anticlockwise.

Origin of counterclockwise

First recorded in 1885–90; counter- + clockwise Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for counterclockwise

Historical Examples of counterclockwise

British Dictionary definitions for counterclockwise



adverb, adjective

US and Canadian in the opposite direction to the rotation of the hands of a clockAlso called (in Britain and certain other countries): anticlockwise
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

Word Origin and History for counterclockwise
adj., adv.

1870, also counter-clockwise; from counter- + clockwise.

Online Etymology Dictionary, © 2010 Douglas Harper