re-refine

transitive verb
\ ¦rē+ \

Definition of re-refine 

: to refine (used motor oil) in order to produce a clean usable lubricant

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Other words from re-refine

re-refiner \"+ \ noun

First Known Use of re-refine

1941, in the meaning defined above

History and Etymology for re-refine

re- + refine entry 1

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The first known use of re-refine was in 1941

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