bromoil process

American  

noun

Photography.

1. a process for making an offset reproduction by first making a photographic print on paper with a silver bromide emulsion, wetting it, and then using it as a lithographic plate, the lighter parts of the emulsion tending to repel the oil base of the ink and the darker parts tending to hold it.

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Etymology

Origin of bromoil process

First recorded in 1905–10