chlorophyll a vs chlorophyl

chlorophyll a and chlorophyl both are nouns.

Word	Noun	Adjective	Verb	Adverb
chlorophyll a	Yes	No	No	No
chlorophyl	Yes	No	No	No

As nouns, chlorophyl is a hypernym of chlorophyll a; that is, chlorophyl is a word with a broader meaning than chlorophyll a:

chlorophyll a: a blue-black plant pigment having a blue-green alcohol solution; found in all higher plants
chlorophyl: any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms

Other hypernyms of chlorophyll a include chlorophyll.

chlorophyll a (noun)	chlorophyl (noun)
a blue-black plant pigment having a blue-green alcohol solution; found in all higher plants	any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms