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

Example Sentences

He mastered the bromoil process early on and later developed and refined his own techniques for lighting, multiple exposures and the like.

From Los Angeles Times