carbon paper
noun
: a thin paper faced with a waxy pigmented coating so that when placed between two sheets of paper the pressure of writing or typing on the top sheet causes transfer of pigment to the bottom sheet
Example Sentences
Recent Examples on the Web Everything was on hard copy with carbon paper duplicates. 
Stephanie Nolasco, Fox News, 19 June 2022 Handwritten information gathered by Chronicle editors was transcribed on manual typewriters, copies being made with carbon paper. George Weigel, WSJ, 17 Mar. 2022 Charts were written by hand and duplicated with carbon paper. James R. Hagerty, WSJ, 2 June 2021 The organizing tools were manual typewriters with carbon paper, index cards in shoeboxes and mimeograph machines. Nadine Hack, Forbes, 21 Apr. 2021 One of his first tasks after joining the company was to refine the practice of producing ink copies of documents without the use of carbon paper. Star Tribune, 4 Dec. 2020 Gale Matson, a chemist at 3M, developed the underlying technology in the 1960s while looking for, among other things, an alternative to messy carbon paper. Star Tribune, 4 Dec. 2020 By contrast, Cook County’s criminal courts still rely partly on paper, as well as an innovation more than two centuries old — carbon paper to make copies of the paper filings. Megan Crepeau, chicagotribune.com, 25 Nov. 2019 Sprayed onto carbon paper, the team had large-format electrodes ready for testing. David Grossman, Popular Mechanics, 24 Oct. 2019 See More
Stephanie Nolasco, Fox News, 19 June 2022 Handwritten information gathered by Chronicle editors was transcribed on manual typewriters, copies being made with carbon paper. George Weigel, WSJ, 17 Mar. 2022 Charts were written by hand and duplicated with carbon paper. James R. Hagerty, WSJ, 2 June 2021 The organizing tools were manual typewriters with carbon paper, index cards in shoeboxes and mimeograph machines. Nadine Hack, Forbes, 21 Apr. 2021 One of his first tasks after joining the company was to refine the practice of producing ink copies of documents without the use of carbon paper. Star Tribune, 4 Dec. 2020 Gale Matson, a chemist at 3M, developed the underlying technology in the 1960s while looking for, among other things, an alternative to messy carbon paper. Star Tribune, 4 Dec. 2020 By contrast, Cook County’s criminal courts still rely partly on paper, as well as an innovation more than two centuries old — carbon paper to make copies of the paper filings. Megan Crepeau, chicagotribune.com, 25 Nov. 2019 Sprayed onto carbon paper, the team had large-format electrodes ready for testing. David Grossman, Popular Mechanics, 24 Oct. 2019 See More Word History
First Known Use
1855, in the meaning defined above