counterclockwise rotation
- noun
- /ˈkaʊntərˌklɒkwaɪz roʊˈteɪʃən/
- US
:
rotación en sentido contrario a las agujas del reloj
- The counterclockwise rotation of the flagella causes them to move in a coordinated bundle according to their left-handed helicity, and the result is a run (Wang et al. 2008).
Examples
-
The blade depth and strip length are easily adjustable, and the blades may be operated in either a clockwise or counterclockwise rotation.
Academic text (1999) -
And now this one causes an anti clockwise or counterclockwise rotation of light in an aqueous solution of this.
-
The exponential distribution of the clockwise and counterclockwise rotation intervals has, however, been questioned by some investigators.
Academic text (2012) -
For example, as depicted in Figure 7, internal rotation resulted in a lateral shift of the patella accompanied by a counterclockwise rotation.
Academic text (2001) -
To open the lid, turn it in a counterclockwise rotation until it clicks.
-
The planet rotates in a counterclockwise rotation, which is unusual for its size.
-
You should move the dial in a counterclockwise rotation to set the combination correctly.
Antonyms
Surface Forms
Morphology
The meaning is directly and compositionally derived from the constituents: 'counterclockwise' specifies direction (opposite the clock hands) and 'rotation' denotes spinning, so the phrase straightforwardly means a spin in that direction. This is a common, cross-linguistic compositional pattern (often rendered as 'anticlockwise' in some varieties of English), so a B1 learner who knows both words will readily understand it.
Etymology
The phrase counterclockwise rotation comes from the image of a clock: a clock's hands move to the right, but a counterclockwise rotation goes the other way, to the left. So it means 'a movement that turns to the left'.