It could be a blot.
Some synonyms for tarnish include stain, blemish, and dull.
colour, stain, tint, tinge, pigment
For some, this may be slightly confusing but the answer is stain and synonyms related to stain .
As a verb, words for blur are, smudge, fog, dim, smear. As a noun, words for blur are, blot, stain, smear, smudge, smirch, blotch.
They are synonyms.
Pollute, stain soil, smudge, contaminate, foul, are some synonyms for 'make dirty'.The word dirty itself can be used as verb. Example:Don't dirty your clothes when you play outside.
Synonyms
a huge stain. a jumbo stain. a large stain.
Relative and kin are synonyms.
its a protein stain
It's simple, because it's a stain.
Yes, acid-fast stain is a type of differential stain.