
1) Artistic technique
Found on
https://www.crosswordclues.com/clue/certosina

Certosina is a decorative art technique used widely in the Italian Renaissance period. Similar to marquetry, it uses small pieces of wood, bone, metal, or mother-of-pearl to create inlaid geometric patterns on wood. The term comes from Certosa Church in Pavia, where the technique was used in ornamenting an altarpiece. == See also == ...
Found on
http://en.wikipedia.org/wiki/Certosina

a technique of inlaying light-colored material, as bone, ivory, metal, or pale wood, in elaborate designs on a dark ground.
Found on
https://www.infoplease.com/dictionary/certosina
No exact match found.