Pronunciation: (ô'tu-trof", -trōf"), [key]
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. Cf. heterotroph.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.