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Muscular stiffening following death.
[Latin : rigor, stiffness + mortis, genitive of mors, death.]
rigor mortis(ˈrɪɡə ˈmɔːtɪs)
(Pathology) pathol the stiffness of joints and muscular rigidity of a dead body, caused by depletion of ATP in the tissues. It begins two to four hours after death and lasts up to about four days, after which the muscles and joints relax
[C19: Latin, literally: rigidity of death]
rig•or mor•tis(ˈrɪg ər ˈmɔr tɪs; esp. Brit. ˈraɪ gɔr)
the stiffening of the body after death.
[1830–40; < Latin: literally, stiffness of death]
rig·or mor·tis(rĭg′ər môr′tĭs)
Stiffening of the muscles after death. It occurs because the energy needed to interrupt the contraction of muscle fibers is no longer being produced.
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|Noun||1.||rigor mortis - temporary stiffness of joints and muscular rigidity occurring after death|
|2.||rigor mortis - muscular stiffening that begins 2 to 4 hours after death and lasts for about 4 days|