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Definition of Psoas
1. Noun. Either of two muscles of the abdomen and pelvis that flex the trunk and rotate the thigh.
Definition of Psoas
1. n. An internal muscle arising from the lumbar vertebræ and inserted into the femur. In man there are usually two on each side, and the larger one, or great psoas, forms a part of the iliopsoas.
Definition of Psoas
1. Noun. (anatomy) Either of two muscles, the psoas major and psoas minor involved in flexion of the trunk ¹
¹ Source: wiktionary.com
Definition of Psoas
1. a muscle of the loin [n PSOAI or PSOAE] : PSOATIC [adj]