chemo·autotrophic \| ̷ ̷ ̷ ̷+\adjective Etymology:chem- + autotrophic : autotrophic and oxidizing some inorganic compound as a source of available energy < a number of bacteria and a few protozoans are chemoautotrophic > — compare photoautotrophic • chemo·autotrophicallyadverb • chemo·au·to·trophy\+ˈȯd.əˌträfē, -ȯfē, ˌȯˈtä.trəfē\noun-es