糸いと底ぞこ

noun

bottom rim of a ceramic cup

Refers to the unglazed ring on the bottom of a pottery cup or bowl, often where it rests on a surface. A somewhat specialized term used in ceramics and tableware contexts.

• この湯ゆ呑のみの糸いと底ぞこはざらざらしている。

  The bottom rim of this teacup feels rough.