An autotroph is a plant that can make its own food.
Autotroph is a biological term that breaks down to mean "self-" (auto-) "nourishing" (troph). Autotrophic organisms synthesize their own food from simple organic substances. If you were an autotroph, you wouldn’t need to eat and you’d still have plenty of energy. But if that were the case, you’d also probably be a glob of algae.
