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reproduction proof

American  

noun

Printing.
  1. repro proof.


reproduction proof British  

noun

  1. Sometimes shortened to: repro.   repro proofprinting a proof of very good quality used for photographic reproduction to make a printing plate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of reproduction proof

First recorded in 1945–50