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phototroph

[foh-tuh-trof, -trohf]
noun Biology.
  1. any organism that uses light as its principal source of energy.
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Origin of phototroph

First recorded in 1940–45; photo- + -troph
Related formspho·to·troph·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for phototrophic

phototroph

noun
  1. an organism that obtains energy from sunlight for the synthesis of organic compounds
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Derived Formsphototrophic (ˌfəʊtəʊˈtrɒfɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

phototrophic in Science

phototroph

[fōtə-trŏf′]
  1. An organism that manufactures its own food from inorganic substances using light for energy. Green plants, certain algae, and photosynthetic bacteria are phototrophs. Also called photoautotroph
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.