Hydrated aluminum silicate; when powdered and freed from gritty particles by elution, kaolin is used as a demulcent and adsorbent. In dentistry, used to add toughness and opacity to porcelain teeth.
Synonym(s): aluminum silicate
[Ch. kao lin, High Ridge, name of a locality in China where the substance is found in abundance]
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Examples: glitazone, GI cocktail, etc.