gesso(redirected from gessoes)
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1. a white ground of plaster and size, used esp in the Middle Ages and Renaissance to prepare panels or canvas for painting or gilding
2. any white substance, esp plaster of Paris, that forms a ground when mixed with water
A material made from chalk and gelatin or casein glue; painted on panels to furnish a surface for tempera work or for polymer-based paints.
A mixture of gypsum plaster, glue, and whiting; applied as a base coat for decorative painting.