The name used to describe organisms that perform photosynthesis and make their own food is autotroph.

Here's a breakdown:

* Autotroph: Comes from the Greek words "autos" (self) and "trophe" (nourishment). They are self-feeders and create their own food through photosynthesis.

* Photosynthesis: The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to create their own food (glucose) and release oxygen as a byproduct.

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