\Pi`[~n]a\, n. [Sp., orig., pineapple, pine cone.]
1.
   (a) The pineapple.
   (b) Pi[~n]a cloth or the fiber of which it is made.
2. Also

\Pi"na\ (pron. also ?). (Metal.)
A cone of silver amalgam prepared for retorting; also, the
residuary cone of spongy silver left after the retorting.