autotrophPronunciation: /ˈɔːtə(ʊ)trəʊf, -trɒf/Definition of autotroph noun Biology an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. Compare with heterotroph.Derivatives autotrophic adjective autotrophy noun autotroph in other Oxford dictionaries Definition of autotroph in the US English dictionary
