cementite vs chemical compound

cementite and chemical compound both are nouns.

Word	Noun	Adjective	Verb	Adverb
cementite	Yes	No	No	No
chemical compound	Yes	No	No	No

As nouns, chemical compound is a hypernym of cementite; that is, chemical compound is a word with a broader meaning than cementite:

cementite: a chemical compound that is a constituent of steel and cast iron; very hard and brittle
chemical compound: (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

Other hypernyms of cementite include compound.

cementite (noun)	chemical compound (noun)
a chemical compound that is a constituent of steel and cast iron; very hard and brittle	(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight