Definition of rigor mortis in English:

rigor mortis

noun

Medicine
  • [mass noun] Stiffening of the joints and muscles of a body a few hours after death, usually lasting from one to four days.

    rigor
    • ‘When they brought the bodies up, rigor mortis had set in on one women's body so strongly that they couldn't separate the mother from her child.’
    • ‘I tried to remove a newspaper from his hand, but rigor mortis had practically grafted it to his skin.’
    • ‘Everybody experiences gradual muscular rigor mortis, where over time you become stiffer and stiffer and stiffer.’
    • ‘After death, bodies are rubbed and anointed to remove rigor mortis.’
    • ‘He tries to slide the ring off his mother's finger, but rigor mortis has set in.’

Origin

Mid 19th century: from Latin, literally stiffness of death.

Pronunciation:

rigor mortis

/ˈmɔːtɪs/