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phototroph

[ foh-tuh-trof, -trohf ]
/ ˈfoʊ təˌtrɒf, -ˌtroʊf /
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noun Biology.

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
pho·to·troph·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for phototroph

phototroph
/ (ˈfəʊtəʊˌtrɒf) /

noun

an organism that obtains energy from sunlight for the synthesis of organic compounds
phototrophic (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

Scientific definitions for phototroph

phototroph
[ fōtə-trŏf′ ]

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
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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