platemaker

[pleyt-mey-ker]

noun Printing.

a machine that makes plates used for reproducing illustrations or printed matter, especially halftone or etched illustrations.
the operator of such a machine.

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Origin of platemaker

1250–1300; Middle English, as surname meaning “armorer”; see plate¹, maker

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018