1. an irregular spot or stain, especially on skin or a surface

1. to mark or stain with irregular spots

Examples

• The red blotch on his arm looked like a rash.
• There was a large ink blotch on the paper.
• Her face had blotches from the allergic reaction.
• The paint began to blotch when it got wet.
• Dark blotches covered the old photograph.
• Don’t blotch the canvas with too much paint.
• The medicine caused blotches to appear on her skin.