Define frustration: the act of frustrating; the state or an instance of being frustrated â frustration in a sentence the act of frustrating; the state or an instance of being frustratedâ¦ See the full definition
The definition of a blot is a spot or stain, whether physical or on a person's character. An example of a blot is an ink stain on a shirt. Blot means to dry, soak up or remove. An example of to blot is to wipe up tipped over milk with a paper towel.
the term foxing describes disfiguring small yellow brown spots or blotches on paper two main causes are mould and iron contaminants in the paper moulds feed on the paper itself as well as any dirt or organic material on it for example finger marks food stains and squashed insects