preservative

Salt is a preservative for meat.

the preservative effects of freezing.

The wood is treated with preservative to prevent decay.

Make sure the panels are treated with a wood preservative.

tables should be treated with preservative before the bad weather sets in.

food preservatives that are toxic in concentrated amounts; a dump for toxic industrial wastes.See Synonyms at poisonous

In this paper,the methods of producing sodium diacetate have been described.It is widely used as high effective preservative in grains,dodders,foods and so on.