Fining pot

A crucible, melting-pot (Proverbs 17:3; 27:21).

Noah Webster's New International Dictionary of the English Language

1. (p. pr. & vb. n.) of Fine.

2. (n.) The act of imposing a fin/.

3. (n.) The process of fining or refining; clarification; also (Metal.), the conversion of cast iron into suitable for puddling, in a hearth or charcoal fire.

4. (n.) That which is used to refine; especially, a preparation of isinglass, gelatin, etc., for clarifying beer.