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nouna fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)
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Definition that contains kaolin
- kaolinite a mineral consisting of aluminum silicate; main source of kaolin
- kaopectate trade name for a fixed-combination antidiarrheal drug that use kaolin as the adsorbent and pectin as the emollient