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counterclockwise (adj., adv.)

"contrary to the direction of rotation of the hands of a clock," 1870, also counter-clockwise; from counter- + clockwise. British English anti-clockwise is attested from 1879.

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Definitions of counterclockwise from WordNet
1
counterclockwise (adv.)
in a direction opposite to the direction in which the hands of a clock move;
please move counterclockwise in a circle!
Synonyms: anticlockwise
2
counterclockwise (adj.)
in the direction opposite to the rotation of the hands of a clock;
Synonyms: anticlockwise / contraclockwise
From wordnet.princeton.edu