cutin vs plant substance

cutin and plant substance both are nouns.

Word	Noun	Adjective	Verb	Adverb
cutin	Yes	No	No	No
plant substance	Yes	No	No	No

As nouns, plant substance is a hypernym of cutin; that is, plant substance is a word with a broader meaning than cutin:

cutin: (biochemistry) a waxy transparent material that occurs in the cuticle of plants and consists of highly polymerized esters of fatty acids
plant substance: material derived from plants

Other hypernyms of cutin include plant material.

cutin (noun)	plant substance (noun)
(biochemistry) a waxy transparent material that occurs in the cuticle of plants and consists of highly polymerized esters of fatty acids	material derived from plants