trismus

from WordNet (r) 3.0 (2006)
trismus
    n 1: prolonged spasm of the jaw muscles
    
from The Collaborative International Dictionary of English v.0.48
Trismus \Tris"mus\, n. [NL., form Gr. ? gnashing of the teeth.]
   (Med.)
   The lockjaw.
   [1913 Webster]
    

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