trismus


tris·mus

noun \ˈtriz-məs\

Definition of TRISMUS

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

tris·mus

noun \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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