full·er's earth (f l  rz)n. A highly absorbent claylike substance consisting of hydrated aluminum silicates, applied moistened with water as a poultice. |
fuller's earth [ful´erz erth]
an impure aluminum silicate that has decolorizing and purifying properties. It is an absorbent used in the management of paraquat poisoning; the mode of action is by tightly binding paraquat to the clay in the formulation, which takes place in the gastrointestinal tract and facilitates elimination in the feces.
fuller's earth
an absorbent, commonly used in dusting powders.
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