hydrated lime vs caustic lime

hydrated lime and caustic lime both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrated lime	Yes	No	No	No
caustic lime	Yes	No	No	No

As nouns, hydrated lime and caustic lime are synonyms defined as:

hydrated lime and caustic lime: a caustic substance produced by heating limestone

Other synonyms of hydrated lime include calcium hydrate, calcium hydroxide, lime, lime hydrate, slaked lime.

hydrated lime (noun)	caustic lime (noun)
a caustic substance produced by heating limestone	a caustic substance produced by heating limestone