calcined lime vs oxide

calcined lime and oxide both are nouns.

Word	Noun	Adjective	Verb	Adverb
calcined lime	Yes	No	No	No
oxide	Yes	No	No	No

As nouns, oxide is a hypernym of calcined lime; that is, oxide is a word with a broader meaning than calcined lime:

calcined lime: a white crystalline oxide used in the production of calcium hydroxide
oxide: any compound of oxygen with another element or a radical

calcined lime (noun)	oxide (noun)
a white crystalline oxide used in the production of calcium hydroxide	any compound of oxygen with another element or a radical