infraspinatus
noun
in·fra·spi·na·tus
| \ ˌin-frə-spī-ˈnāt-əs
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plural infraspinati\ -ˈnā-ˌtī
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Medical Definition of infraspinatus
: a muscle that occupies the chief part of the infraspinous fossa of the scapula, is inserted into the greater tubercle of the humerus, and rotates the arm laterally