stain vs visual aspect

stain and visual aspect both are nouns.

Word	Noun	Adjective	Verb	Adverb
stain	Yes	No	Yes	No
visual aspect	Yes	No	No	No

As nouns, visual aspect is a hypernym of stain; that is, visual aspect is a word with a broader meaning than stain:

Other hypernyms of stain include appearance.

stain (noun)	visual aspect (noun)
an act that brings discredit to the person who does it	outward or visible aspect of a person or thing
a soiled or discolored appearance
a symbol of disgrace or infamy
anything regarded as making something unclean
(microscopy) a dye or other coloring material that is used in microscopy to make structures visible

stain (verb)	visual aspect (verb)
produce or leave stains
color with a liquid dye or tint
color for microscopic study
make dirty or spotty, as by exposure to air; also used metaphorically