carbon copy
noun
°A copy produced in an alternated stack of ordinary sheets of paper and carbon papers. The pression applied on the top sheet (by a pen or typewriter) causes every carbon paper to release its carbon cover, thus reproducing the writing on the subjacent layers of paper.
"Please make a carbon copy of this contract for our records."
°Any duplicate.
"This new home is simply a carbon copy of the one down the street."
verb
°To create a carbon copy of.
"Please carbon copy this contract for our records."
°make a copy for, send a duplicate to, cc.
synonyms: cc