1. a substance applied to materials like paper, fabric, or canvas to fill pores and create a smooth surface for painting or printing
Usage: technical; art and manufacturing
2. a device or tool used to determine or sort items by size

Examples

• The artist applied sizer to the canvas before beginning the oil painting.
• Paper manufacturers use sizer to improve the surface quality of their products.
• The fabric was treated with sizer to prevent ink from bleeding through.
• She used a ring sizer to determine the correct fit.
• The jeweler’s sizer helped measure the exact diameter needed.
• Without proper sizer, the paint would absorb unevenly into the surface.