rig ‧ or mor ‧ tis /ˌrɪɡə ˈmɔːtəs, ˌraɪɡɔː- $ ˌrɪɡər ˈmɔːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: 'stiffness of death' ]
the condition in which someone’s body becomes stiff after they die
rig ‧ or mor ‧ tis /ˌrɪɡə ˈmɔːtəs, ˌraɪɡɔː- $ ˌrɪɡər ˈmɔːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: 'stiffness of death' ]
the condition in which someone’s body becomes stiff after they die
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012