gastrocnemius

from WordNet (r) 3.0 (2006)

gastrocnemius
    n 1: the muscle in the back part of the leg that forms the
         greater part of the calf; responsible for the plantar
         flexion of the foot [syn: {gastrocnemius}, {gastrocnemius
         muscle}]

from The Collaborative International Dictionary of English v.0.48

Gastrocnemius \Gas`troc*ne"mi*us\, n. [NL., from Gr. ? the calf
   of the leg.] (Anat.)
   The muscle which makes the greater part of the calf of the
   leg.
   [1913 Webster]

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