superrefine

English

Etymology

super- +‎ refine

Verb

superrefine (third-person singular simple present superrefines, present participle superrefining, simple past and past participle superrefined)

1. (transitive) To refine to a very high degree.
   • 1913, United States. Bureau of Mines, Bulletin, page 73:

     […] the electric process is likely to become an important adjunct to the Bessemer and open-hearth processes as a means of superrefining the molten products that they yield.