trismus

noun tris·mus \ ˈtriz-məs \

Definition of trismus

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

Origin and Etymology of trismus

New Latin, from Greek trismos gnashing (of teeth), from trizein to squeak, gnash; akin to Latin stridēre to creak — more at strident


Medical Dictionary

trismus

noun tris·mus \ ˈtriz-məs \

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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