Source : Webster's Revised Unabridged Dictionary (1913)

Porcelaneous \Por`ce*la"ne*ous\, Porcellaneous
\Por`cel*la"ne*ous\, a.
   1. Of or pertaining to porcelain; resembling porcelain; as,
      porcelaneous shells.

   2. (Zo["o]l.) Having a smooth, compact shell without pores;
      -- said of certain Foraminifera.