fuller's earth

noun

an absorbent clay, used especially for removing grease from fabrics, in fulling cloth, as a filter, and as a dusting powder.

fuller's earth

a natural absorbent clay used, after heating, for decolorizing oils and fats, fulling cloth, etc

First recorded in 1515–25

Fullers earth is often an excellent application when there is chafing.

You are probably aware that fullers-earth is a valuable product, and that it is only found in one or two places in England?

I was fortunate enough to discover that there was a deposit of fullers-earth in one of my fields.

With this, moisten the soap and fullers earth, till you have a stiff paste.

Wash for an hour and a half in clear water, treat for two hours with fullers earth, soda and lime, and wash again for two hours.

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