phototroph
American Heritage Dictionary:
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pho·to·troph
(fō'tə-trŏf', -trōf') 
n.
A photoautotroph.
phototrophically pho'to·troph'i·cal·ly adv.
n.
A photoautotroph.
[PHOTO- + Greek trophē, nourishment.]
phototrophic pho'to·troph'ic adj.phototrophically pho'to·troph'i·cal·ly adv.
Oxford Dictionary of Biochemistry:
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phototroph
or phototrophe
any organism whose principal or only source of primary energy is sunlight. The great majority of such organisms are photoautotrophs (or photolithotrophs), which use light energy to synthesize their organic requirements solely from inorganic precursors; these include all green plants and algae, cyanobacteria, and green and purple sulfur bacteria. Relatively few phototrophs are photoheterotrophs (or photoorganotrophs), which require a supply of organic precursors to manufacture their own organic components; examples include certain purple nonsulfur bacteria. Compare chemotroph.
—phototrophic adj.; phototrophy n.
any organism whose principal or only source of primary energy is sunlight. The great majority of such organisms are photoautotrophs (or photolithotrophs), which use light energy to synthesize their organic requirements solely from inorganic precursors; these include all green plants and algae, cyanobacteria, and green and purple sulfur bacteria. Relatively few phototrophs are photoheterotrophs (or photoorganotrophs), which require a supply of organic precursors to manufacture their own organic components; examples include certain purple nonsulfur bacteria. Compare chemotroph.
—phototrophic adj.; phototrophy n.
| phototransistor, phototoxic, phototaxis | |
| phototropic, phototropin, phototropism |
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Oxford Dictionary of Biochemistry
Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved.
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