(1):
(n.) That which is used to refine; especially, a preparation of isinglass, gelatin, etc., for clarifying beer.
(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):
(p. pr. & vb. n.) of Fine