[het-er-uh-trof, -trohf]
Biology. an organism requiring organic compounds for its principal source of food.
Compare autotroph.

1895–1900; hetero- + -troph

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American Heritage
Medical Dictionary

heterotroph het·er·o·troph (hět'ər-ə-trŏf', -trōf')
An organism that cannot synthesize its own food and is dependent upon complex organic substances for nutrition.

het'er·o·troph'ic (-trŏf'ĭk, -trō'fĭk) adj.
het'er·ot'ro·phy (-ə-rŏt'rə-fē) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
heterotroph   (hět'ər-ə-trŏf')  Pronunciation Key 
An organism that cannot manufacture its own food and instead obtains its food and energy by taking in organic substances, usually plant or animal matter. All animals, protozoans, fungi, and most bacteria are heterotrophs. Compare autotroph.

heterotrophic adjective (hět'ər-ə-trŏf'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Following are some ways to keep the heterotrophs under control.
They are heterotrophs that normally respire by aerobic means.
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