| Pipe Clay (n.) A plastic, unctuous clay of a grayish white color, -- used in making tobacco pipes and various kinds of earthenware, in scouring cloth, and in cleansing soldiers' equipments. Thesaurus Entries achromatization, albification, blanching, bleach, bleaching, calcimine, decoloration, decolorization, decolorizing, discoloration, etiolation, fading, frosting, grizzling, lightening, madder bleach, market bleach, paling, pipe clay, silvering, whitewash, whitewashing, whiting |