| Passe partout | A passe partout (or “framing matboard”) is a 1.5mm cardboard sheet with a cut-out that is placed over the picture (whatever it is a photograph, a canvas, a pastel, a watercolour, a print or a drawing). |
| Patina | 1) A film or encrustation, usually green, appearing gradually on a surface of copper and bronze, due to weathering and as a result of oxydation. 2) An opaque toning used to stimulate aging or to dull the brightness of a gilded surface. 3) A deep, soft polished gleam acquired by wood and metal after years of wear and polishing. |
| Picture hanger | A device attached to the wall on which the frame is hung. |
| Preservation | In framing, it is the careful maintenance and protection of subjects, using materials and procedures that will have no adverse effects on a piece of artwork and will protect the artwork from external damage. |
| Primary colours | Red, yellow and blue. No combination of other colors will yield a primary color; combinations of the primary colors yield all other colors. |