maleic hydrazide vs hydrazide

maleic hydrazide and hydrazide both are nouns.

Word	Noun	Adjective	Verb	Adverb
maleic hydrazide	Yes	No	No	No
hydrazide	Yes	No	No	No

As nouns, hydrazide is a hypernym of maleic hydrazide; that is, hydrazide is a word with a broader meaning than maleic hydrazide:

maleic hydrazide: a herbicide and a plant growth regulator.
hydrazide: any of a class of organic compounds sharing a common functional group characterized by a nitrogen to nitrogen covalent bond with 4 substituents with at least one of them being an acyl group.

Other hypernyms of maleic hydrazide include herbicide, weed killer, weedkiller.

maleic hydrazide (noun)	hydrazide (noun)
a herbicide and a plant growth regulator.	any of a class of organic compounds sharing a common functional group characterized by a nitrogen to nitrogen covalent bond with 4 substituents with at least one of them being an acyl group.