chemoautotroph vs chemotrophic autotroph

chemoautotroph and chemotrophic autotroph both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemoautotroph	Yes	No	No	No
chemotrophic autotroph	Yes	No	No	No

As nouns, chemoautotroph and chemotrophic autotroph are synonyms defined as:

chemoautotroph and chemotrophic autotroph: An organism that depends on chemicals for its energy and principally on carbon dioxide for its carbon.

chemoautotroph (noun)	chemotrophic autotroph (noun)
An organism that depends on chemicals for its energy and principally on carbon dioxide for its carbon.	An organism that depends on chemicals for its energy and principally on carbon dioxide for its carbon.