'Columbaria' definitions:
Definition of 'Columbaria'
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Columbarium \Col`um*ba"ri*um\, n.; pl. L. Columbaria [L. See
Columbary.] (Rom. Antiq.)
(a) A dovecote or pigeon house.
(b) A sepulchral chamber with niches for holding cinerary
urns.
[1913 Webster]