A photoengraving process that uses the sun's light to create images on metal plates, combining heliography with etching techniques.
From 'helio-' (sun) + 'gravure' (engraving). This technical term emerged in the late 19th century as photographers sought ways to reproduce images through printing plates.
Heliogravure was the ancestor of modern photo printing—it let artists use the sun to burn images into copper plates, creating the first truly mass-produced photographs!
Complete word intelligence in one call. Free tier — 50 lookups/day.