English

Definition of rigor mortis noun from the Oxford Advanced Learner's Dictionary

 

rigor mortis

 noun
noun
BrE BrE//ˌrɪɡə ˈmɔːtɪs//
 
; NAmE NAmE//ˌrɪɡər ˈmɔːrtɪs//
 
[uncountable]
 
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the process by which the body becomes stiff after death Rigor mortis had already set in. Word Origin mid 19th cent.: from Latin, literally ‘stiffness of death’.
See the Oxford Advanced American Dictionary entry: rigor mortis