[ osh-oo-er-ee, os- ]
/ ˈɒʃ uˌɛr i, ˈɒs- /

noun, plural os·su·ar·ies.

a place or receptacle for the bones of the dead.
Also ossuarium.

Origin of ossuary

1650–60; < Late Latin ossuārium, variant of ossārium, equivalent to oss- (stem of os) bone + -ārium -ary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for ossuary

/ (ˈɒsjʊərɪ) /

noun plural -aries

any container for the burial of human bones, such as an urn or vault

Word Origin for ossuary

C17: from Late Latin ossuārium, from Latin os bone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012