heliotypography
noun
he·lio·typography
¦hēlē(ˌ)ō+
variants or heliotypy
ˈhēlēəˌtīpē
plural -es
: the collotype process
Word History
Etymology
heliotypography from heli- entry 1 + typography; heliotypy International Scientific Vocabulary heli- entry 1 + -typy