domatium vs plant structure

domatium and plant structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
domatium	Yes	No	No	No
plant structure	Yes	No	No	No

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

domatium: a part of a plant (e.g., a leaf) that has been modified to provide protection for insects or mites or fungi
plant structure: any part of a plant or fungus

Other hypernyms of domatium include plant part.

domatium (noun)	plant structure (noun)
a part of a plant (e.g., a leaf) that has been modified to provide protection for insects or mites or fungi	any part of a plant or fungus