Psoas
noun, plural psoai
[soh-ahy] /ˈsoʊ aɪ/ (Show IPA), psoae
[soh-ee] /ˈsoʊ i/ (Show IPA). Anatomy.
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.
noun
1.
either of two muscles of the loins that aid in flexing and rotating the thigh
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