overburned lime vs lime hydrate

overburned lime and lime hydrate both are nouns.

Word	Noun	Adjective	Verb	Adverb
overburned lime	Yes	No	No	No
lime hydrate	Yes	No	No	No

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

overburned lime: An over-burned lime (also called oveburned lime, or sometimes dead-burned lime and deadburned lime) is a lime that has been fired above 1,100° C, thus loosing its reactivity, which leads to poor or no bond strength.
lime hydrate: a caustic substance produced by heating limestone

Other hypernyms of overburned lime include calcium hydrate, calcium hydroxide, caustic lime, hydrated lime, lime, slaked lime.

overburned lime (noun)	lime hydrate (noun)
An over-burned lime (also called oveburned lime, or sometimes dead-burned lime and deadburned lime) is a lime that has been fired above 1,100° C, thus loosing its reactivity, which leads to poor or no bond strength.	a caustic substance produced by heating limestone