souring

A becoming or making sour: as, the souring of bread.

That which makes sour or acid; especially, vinegar.

The wild apple, or crab-apple; also, any sour apple.

Dough left in the tub after oat-cakes are baked.

In bleaching, the process of exposing fibers or textures to the action of dilute acid; specifically, the exposing of goods which have been treated in a solution of chlorid of lime to a dilute solution of sulphuric acid, which, by setting free the chlorin, whitens the cloth, and neutralizes the alkalis with which the cloth has been impregnated.

A process of dressing sealskin.

Any sour apple.

Present participle of sour.

Any sour apple.

the process of becoming sour