etiolation vs appearance

etiolation and appearance both are nouns.

Word	Noun	Adjective	Verb	Adverb
etiolation	Yes	No	No	No
appearance	Yes	No	No	No

As nouns, appearance is a hypernym of etiolation; that is, appearance is a word with a broader meaning than etiolation:

Other hypernyms of etiolation include visual aspect.

etiolation (noun)	appearance (noun)
(botany) the act of causing a plant to develop without chlorophyll by growing it without exposure to sunlight	the act of appearing in public view
the act of weakening by stunting the growth or development of something	formal attendance (in court or at a hearing) of a party in an action
a pale and sickly appearance	pretending that something is the case in order to make a good impression
	outward or visible aspect of a person or thing
	a mental representation
	the event of coming into sight