noun tris·mus \ˈtriz-məs\

Definition of TRISMUS

:  involuntary contraction of the muscles of mastication (as in tetanus or Parkinson's disease)
:  lockjaw

Origin of TRISMUS

New Latin, from Greek trismos gnashing (of teeth), from trizein to squeak, gnash; akin to Latin stridēre to creak — more at strident
First Known Use: circa 1693


noun tris·mus \ˈtriz-məs\   (Medical Dictionary)

Medical Definition of TRISMUS

:  spasm of the muscles of mastication resulting from any of various abnormal conditions or diseases (as tetanus)


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May 26, 2015
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