psoas

American  

[soh-uhs] / ˈsoʊ əs /

noun

Anatomy.

psoai, plural psoae plural

1. either of two muscles, one on each side of the loin, extending internally from the sides of the spinal column to the upper end of the femur, which assist in flexing and rotating the thigh and flexing the trunk on the pelvis.

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psoas British  

/ ˈsəʊəs /

noun

1. either of two muscles of the loins that aid in flexing and rotating the thigh

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Other Word Forms

Derived Forms

• psoatic
  adjective

Inflected Forms

noun

• psoae
  plural
• psoai
  plural

Etymology

Origin of psoas

1675–85; < New Latin < Greek psóās, accusative plural (taken as nominative singular) of psóa a muscle of the loins

Example Sentences

One of the exercises involves lying on a psoas ball.

From Los Angeles Times • May 24, 2024

Nadal, who won his 14th French Open title last year, was diagnosed with a tear in his left psoas muscle after losing in the second round of the Australian Open in January.

From BBC • Apr. 20, 2023

“But I had a labral tear and my psoas muscle was almost severed due to a structural abnormality in my hip. It wasn’t pretty.”

From New York Times • Aug. 30, 2019

I’ve been under the ministrations of many physical therapists who knead and rub and press my mercurial, angry psoas.

From Salon • Jul. 26, 2015

In psoas abscesses the exudation extends beneath the sheath of the muscle or between the iliacus and the bone.

From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various