The Collaborative International Dictionary of English v.0.48:

Crematorium \Crem`a*to"ri*um\ (kr?m`?-t?"r?-?m), Crematory
\Crem"a*to*ry\ (kr?m"?-t?-r?), n.; pl. Crematoriums (-[u^]mz),
   Crematories (-r?z). [NL. crematorium, fr. L. cremator.]
   A furnace for cremating corpses; a building containing such a
   furnace.
   [1913 Webster]