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| a chattering or flighty, light-headed person. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
sizing
coating with a gelatinous or other substance to add strength or stiffness or to reduce absorbency. In the visual arts, a canvas or panel is prepared for painting by applying size, a dilute mixture of glue or a resinous substance. In oil painting it is essential that the canvas be coated with size so that its absorbency is reduced and contact with the paint, which would lead ultimately to the decay of the canvas fibre, is avoided. Hide glue is most frequently used to treat canvas, having largely replaced parchment size, which was recommended by the 14th-century Italian artist and writer Cennino Cennini.
Learn more about sizing with a free trial on Britannica.com.