| 1. | a large, irregular spot or blot. |
| 2. | Plant Pathology.
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| 3. | a skin eruption; blemish. |
| 4. | to mark with blotches; blot, spot, or blur: The floor of the forest was blotched with cool, dark moss. |
| 5. | Textiles. of or pertaining to blotch printing, or to the colored ground produced by this process. |
| blotch (blŏch) Pronunciation Key
Any of several plant diseases caused by fungi and resulting in brown or black dead areas on leaves or fruit. |