heliotype

Meanings

1. 1
   noun

   historical: a photomechanical printing process using a gelatin relief plate

   The publisher chose heliotype to reproduce the photographs without engraving them.

2. 2
   noun

   a print produced by the heliotype process

   The plate is a heliotype made from the original negative.

Formed from helio- ("sun, light") + type ("printed impression"). The nineteenth-century process was a form of collotype used to reproduce photographs.

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