\Pre*serv"a*to*ry\, a.
Preservative. --Bp. Hall.

\Pre*serv"a*to*ry\, n.; pl. {Preservatories}.
1. A preservative. [Obs.] --Whitlock.
2. A room, or apparatus, in which perishable things, as
   fruit, vegetables, etc., can be preserved without decay.