potter's clay

1. Potter's clay that is thinned and used for coating or decorating ceramics.
   薄的陶土，用于涂刷或装饰陶器。
2. The potter uses one of the Earth's most basic materials, clay.
   制陶匠人使用大地上最基本的原材料&粘土。

noun

1. clay that does not contain any iron

   Synonym:    potter's earth