inhumation

noun

1. (countable, uncountable)The act of burial.

   “"Cremation versus Inhumation" was the subject considered at the meeting of the Nineteenth Century Club at the residence of Mr. Courtlandt Palmer, No. 117 East One Hundred and Seventeenth-street, last evening.”

   “Stampolidis's team has unearthed three types of Iron Age burials at Orthi Petra . . . dating from the ninth to the seventh century B.C.: pithos (large ceramic jar) burials, cremations, and basic inhumations.”

2. (countable, uncountable)The act of burying vessels in warm earth in order to expose their contents to a steady moderate heat; the state of being thus exposed.
3. (countable, uncountable)Arenation.