1. the action or process of making irregular spots or stains

1. present participle of blotch; making irregular spots or stains on something

Examples

• The paint was blotching on the damp wall.
• She noticed blotching on her skin after the allergic reaction.
• The ink kept blotching on the cheap paper.
• The blotching of the fabric made it unsuitable for sale.
• His face showed signs of blotching from the sun exposure.
• The artist was blotching colors together to create texture.