colophan
/kɒləfæn/Definitions
1. noun
A type of adhesive used for mounting prints or other artworks on paper or board, consisting of a mixture of gum and resin.
“The artist used colophan to attach the print to the cardboard backing.”
2. verb
To attach or mount a print or other artwork on paper or board using colophan.
“The conservator had to colophon a fragile print to preserve it.”