A particular method for making a painting or drawing, for example oils, watercolors, etc., or A liquid used to make the paint more fluid for easier paint application or glazes, or to dry more quickly (drying medium). Includes:

• Home made versions such as 1/3 dammar, 1/3 turpentine, 1/3 linseed oil or stand oil.
• Liquin
• Walnut oil
• Copal medium
• Archival odorless lean medium