A smear, smudge or blot
Something that appears hazy or indistinct
In a state of doubt or confusion.
To cause imperfection of vision in; to dim; to darken.
To become indistinct.
To transfer the input focus away from.
To smear, stain or smudge.
To make indistinct or hazy, to obscure or dim.
That which sullies or defiles.
Silt or sediment deposited from flowing water.
The scoria on the surface of molten metal in the ladle.
The liquid discharges from kitchens, washbasins, toilets etc; sewage.