Definition of autotroph in English:
autotroph
noun ˈɔːtə(ʊ)trɒfˈɔːtə(ʊ)trəʊfˈôdəˌtrōf
Biology An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Compare with heterotroph
Example sentencesExamples
- These developmental differences between autotrophs and parasites suggest that the functions of photoreceptors differ among autotrophs, hemiparasites, and holoparasites.
- The kelps are an important group of marine autotrophs that has left little or nothing in the way of a direct fossil record.
- Because they interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs - organisms which make their own food using photosynthesis.
- Plants are autotrophs, self-nourishing life forms.
- Since plants and other photosynthetic organisms can produce many of their own nutrition requirements they are known as autotrophs.
- It is a true autotroph and uses only two sources for its metabolism: carbon dioxide as its source for carbon and hydrogen as an energy source.