Dictionary definition · maculate
verb
- make dirty or spotty, as by exposure to air; also used metaphorically"The silver was tarnished by the long exposure to the air"
- spot, stain, or pollute"The townspeople defiled the river by emptying raw sewage into it"
adjective
- morally blemished; stained or impure
- spotted or blotched
Source: Open English WordNet (CC BY 4.0).