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n. pl. gas·troc·ne·mi·i (-mē-ī′) The largest, most prominent muscle of the calf of the leg, the action of which extends the foot and bends the knee. [New Latin gastrocnēmius, from Greek gastroknēmiā, calf of the leg : gastro-, belly (from its bellylike shape); see GASTRO- + knēmē, leg.] |
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