aftertreatment

noun
af·​ter·​treat·​ment | \ ˈaf-tər-ˌtrēt-mənt\

Definition of aftertreatment

: a secondary treatment to which a material (as film or dyed goods) is subjected after the primary treatment is finished

First Known Use of aftertreatment

1852, in the meaning defined above

History and Etymology for aftertreatment

after- + treatment

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