ebonite vs vulcanite

ebonite and vulcanite both are nouns.

Word	Noun	Adjective	Verb	Adverb
ebonite	Yes	No	No	No
vulcanite	Yes	No	No	No

As nouns, ebonite and vulcanite are synonyms defined as:

ebonite and vulcanite: a hard nonresilient rubber formed by vulcanizing natural rubber

Other synonyms of ebonite include hard rubber.

ebonite (noun)	vulcanite (noun)
a hard nonresilient rubber formed by vulcanizing natural rubber	a hard nonresilient rubber formed by vulcanizing natural rubber