from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An organism capable of synthesizing its own food from inorganic substances using light as an energy source. Green plants and photosynthetic bacteria are photoautotrophs.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an organism, such as all green plants, that can synthesize its own food from inorganic material using light as a source of energy
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