chemautotroph in British English
(ˌkiːməʊˈɔːtətrəʊf) or chemoautroph (ˌkiːməʊˈɔːtrəuf, ˌkɛm-)
noun biology an organism, such as a bacterium, that obtains its energy from inorganic reactions using simple compounds, such as ammonia or hydrogen sulphide
Also called: chemolithotroph Derived forms
chemautotrophic (ˌkiːməʊˌɔːtəˈtrɒfɪk, ˌkɛm-) adjective