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autotrophy

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au·to·troph   (ô'tə-trŏf', -trōf')   
n.  An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
au'to·troph'ic (-trŏf'ĭk, -trō'fĭk) adj., au'to·troph'i·cal·ly adv., au·tot'ro·phy (ô-tŏt'rə-fē) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: au·to·tro·phy
Pronunciation: 'ot-&-"trO-fE, o-'tä-tr&-fE
Function: noun
Inflected Form: plural -phies
: the condition of being autotrophic; also : the process by which an autotrophic organism obtains energy from carbon dioxide or carbonates and inorganicsubstances
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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