Definition of ossuarium in English:

ossuarium

noun

rare
  • A receptacle or repository for the bones of the dead; = "ossuary".

Origin

Mid 18th century; earliest use found in Horace Walpole (1717–1797), author, politician, and patron of the arts. From classical Latin ossuārium place for the bones of the dead from ossua, variant of ossa, plural of os bone + -ārium.

Pronunciation

ossuarium

/ˌɒsjuːˈɛːrɪəm/