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Webster 1913 Edition
Copyer
Cop′y-er
,Noun.
See
Copier
. ☞ The writing or drawing is made with aniline ink on paper, and a reverse copy transfered by pressure to a slab of gelatin softened with glycerin. A large number of transcripts can be taken while the ink is fresh.
Various names have been given to the process [the gelatin copying process], some of them acceptable and others absurd; hectograph, polygraph,
copygraph
, lithogram, etc. Knight.
Webster 1828 Edition
Copyer
COPYER
,Noun.