hydrolith vs calcium hydride

hydrolith and calcium hydride both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrolith	Yes	No	No	No
calcium hydride	Yes	No	No	No

As nouns, hydrolith and calcium hydride are synonyms defined as:

hydrolith and calcium hydride: a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen

hydrolith (noun)	calcium hydride (noun)
a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen	a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen