excarnation
Noun
Meaning
The act of depriving or divesting of flesh; excarnification; -- opposed to incarnation.
Source: Webster's dictionaryExamples
On the whole burials largely disappear across England, the dead being disposed of in a way which is archaeologically invisible: excarnation is a widely cited possibility.
This includes various forms of excarnation, where the corpse is stripped of the flesh, leaving only the bones, which are then either buried or stored elsewhere, in ossuaries or tombs for example.