The Collaborative International Dictionary of English v.0.48:
Cinerary \Cin"er*a*ry\, a. [L. cinerarius, fr. cinis ashes.] Pertaining to ashes; containing ashes. [1913 Webster] Cinerary urns, vessels used by the ancients to preserve the ashes of the dead when burned. [1913 Webster]WordNet (r) 3.0 (2006):
cinerary adj 1: containing or used for ashes of the cremated dead; "a cinerary urn"