Meaning of blotch

blotch

1. a large, irregular spot or blot.
1. a diseased, discolored spot or area on a plant.
2. a disease so characterized, usually accompanied by cankers and lesions.
3. a skin eruption; blemish.

1. to mark with blotches; blot, spot, or blur: The floor of the forest was blotched with cool, dark moss.

1. of or pertaining to blotch printing, or to the colored ground produced by this process.