phytonadione vs naphthoquinone

phytonadione and naphthoquinone both are nouns.

Word	Noun	Adjective	Verb	Adverb
phytonadione	Yes	No	No	No
naphthoquinone	Yes	No	No	No

As nouns, naphthoquinone is a hypernym of phytonadione; that is, naphthoquinone is a word with a broader meaning than phytonadione:

phytonadione: a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent
naphthoquinone: a fat-soluble vitamin that helps in the clotting of blood

Other hypernyms of phytonadione include antihemorrhagic factor, vitamin K.

phytonadione (noun)	naphthoquinone (noun)
a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent	a fat-soluble vitamin that helps in the clotting of blood