Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to autotroph: heterotroph
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
au·tot′ro·phy (ô-tŏt′rə-fē) n.
au•to•troph(ˈɔ təˌtrɒf, -ˌtroʊf)
any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists. Compare heterotroph.
Organism (e.g. plant) that can make its own food from simple inorganic molecules.