pronation

American  

[proh-ney-shuhn] / proʊˈneɪ ʃən /

noun

1. rotation of the hand or forearm so that the surface of the palm is facing downward or toward the back (opposed to supination).

2. a comparable motion of the foot consisting of abduction followed by eversion.

3. the position assumed as the result of this rotation.

4. any similar motion of the limbs or feet of animals.

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Etymology

Origin of pronation

First recorded in 1660–70; pronate + -ion

Example Sentences

To throw the changeup, he needed his wrist to snap in the other direction, a process called pronation.

From Los Angeles Times • May 12, 2024

At the turn of the century, brands fixated on controlling how a person’s foot rolls inward with each step — known as pronation — even if the resulting landing was unnatural.

From Seattle Times • Sep. 7, 2021

Wrist pronation, callosified skin, Amped rotation to optimize spin; With the Magnus effect zooming in, it tricks your view.

From Washington Post • Aug. 3, 2017

The atlantoaxial pivot joint provides side-to-side rotation of the head, while the proximal radioulnar articulation allows for rotation of the radius during pronation and supination of the forearm.

From Textbooks • Jun. 19, 2013

The child complains of pain in the region of the elbow: the arm at once becomes useless, and is held flexed, midway between pronation and supination.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander