'Refiner' definitions:

Definition of 'refiner'

From: WordNet
noun
One whose work is to refine a specific thing; "he was a sugar refiner"

Definition of 'Refiner'

From: GCIDE
  • Refiner \Re*fin"er\ (-f?n"?r), n. One who, or that which, refines. [1913 Webster]

Definition of 'Refiner'

From: Easton
  • Refiner The process of refining metals is referred to by way of illustrations in Isa. 1:25; Jer. 6:29; Zech. 13:9; Mal. 3:2, 3.