英和和英

発音

• 韻: -uːf

名詞

smoke proof (複数形 smoke proofs)

1. (typography, now chiefly historical) A temporary print made from a thin coating of carbon deposited on the punch surface by a candle flame, used in evaluating the progress of the design of the punch.
   • 2009, James Mosley, in Michael F Suarez & Michael L Turner (eds.), The Cambridge History of the Book in Britain, vol. V, Cambridge 2014, p. 171:

     Progress was observed from time to time by holding the end of the punch in the sooty flame of a candle or lamp and by pressing it on slightly damp paper to make a smoke proof.