supinator

from WordNet (r) 3.0 (2006)
supinator
    n 1: a muscle (especially in the forearm) that produces or
         assists in supination
from The Collaborative International Dictionary of English v.0.48
Supinator \Su`pi*na"tor\, n. [NL.] (Anat.)
   A muscle which produces the motion of supination.
   [1913 Webster]
antiflux / dictionary / supinator
[email protected]