The Collaborative International Dictionary of English v.0.48:

Bombolo \Bom"bo*lo\, n.; pl. Bomboloes. [Cf. It bombola a
   pitcher.]
   A thin spheroidal glass retort or flask, used in the
   sublimation of camphor. [Written also bumbelo, and
   bumbolo.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bumbelo \Bum"be*lo\, n.; pl. Bumbeloes. [It. bombola.]
   A glass used in subliming camphor. [Spelled also bombolo
   and bumbolo.]
   [1913 Webster]