axerophthol vs retinol

axerophthol and retinol both are nouns.

Word	Noun	Adjective	Verb	Adverb
axerophthol	Yes	No	No	No
retinol	Yes	No	No	No

As nouns, retinol is a hyponym of axerophthol; that is, retinol is a word with a more specific, narrower meaning than axerophthol:

axerophthol: any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
retinol: an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene

Other hyponyms of axerophthol include vitamin A1, dehydroretinol, vitamin A2.

axerophthol (noun)	retinol (noun)
any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes	an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene