Noun terra alba has 3 senses
  1. terra alba - finely pulverized gypsum used especially as a pigment
    --1 is a kind of
    gypsum
  2. pipeclay, terra alba - fine white clay used in making tobacco pipes and pottery and in whitening leather
    --2 is a kind of clay
  3. china clay, china stone, kaolin, kaoline, porcelain clay, terra alba - a 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)
    --3 is a kind of clay
    --3 is a substance of Kaopectate
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