Definition of livor mortis in US English:

livor mortis

noun

Medicine
  • Purplish-red discoloration of the skin of dependent surfaces of a dead body, resulting from blood draining downwards in response to gravity.

Origin

Mid 19th century; earliest use found in Medical Times and Gazette. From scientific Latin livor mortis from classical Latin livor + mortis, genitive of mors death, probably after scientific Latin rigor mortis rigor mortis.

Pronunciation

livor mortis

/ˌlʌɪvɔː ˈmɔːtɪs/