Medical Dictionary

risus sardonicus

play play
noun ri·sus sar·do·ni·cus \ˈrī-səs-ˌsär-ˈdän-i-kəs, ˈrē-\

Medical Definition of risus sardonicus

  1. :  a facial expression characterized by raised eyebrows and grinning distortion of the face resulting from spasm of facial muscles especially in tetanus

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to cast off or become cast off

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