noun, plural: chemolitotrophs
An organism deriving energy from chemical reactions and synthesizing all necessary organic compounds from carbon dioxide.
Examples are certain bacteria and archaea, which are further grouped into methanogens, halophiles, sulfur reducers, nitrifiers, anammoxbacteria and thermoacidophiles.
Word origin: Gk: Chemo = chemical, auto = self, troph = nourishment
Related forms: chemoautotrophic (adjective), chemoautotrophy (noun)