Smaller psoas muscle
smaller psoas muscle n.
An inconstant muscle with origin from the twelfth thoracic and the first lumbar vertebrae and the disk between them, with insertion into the iliopubic eminence, with nerve supply from the lumbar plexus, and whose action assists in the flexion of the lumbar spine.
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adjective, smaller, smallest. 1. of limited size; of comparatively restricted dimensions; not big; little: a small box. 2. slender, thin, or narrow: a small waist. 3. not large as compared with others of the same kind: a small elephant. 4. (of letters) lowercase (def 1). 5. not great in amount, degree, extent, duration, value, etc.: […]
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noun 1. (basketball) a versatile attacking player