siloxane vs chemical compound

siloxane and chemical compound both are nouns.

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

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

siloxane: any of a large class of compounds that have alternate silicon and oxygen atoms
chemical compound: (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

Other hypernyms of siloxane include compound.

siloxane (noun)	chemical compound (noun)
any of a large class of compounds that have alternate silicon and oxygen atoms	(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight