photoautotroph

noun
pho·​to·​au·​to·​troph | \ ˌfō-tō-ˈȯ-tə-ˌtrȯf How to pronounce photoautotroph (audio) \
plural photoautotrophs

Definition of photoautotroph

: a photosynthetic organism (such as a green plant or a cyanobacterium) that utilizes energy from light to synthesize organic molecules Green plants that convert carbon dioxide into carbohydrates in the presence of sunlight are called photoautotrophs, and they are the primary producers in most marine and terrestrial ecosystems.— James J. Childress et al.

First Known Use of photoautotroph

1939, in the meaning defined above

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The first known use of photoautotroph was in 1939

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Dictionary Entries Near photoautotroph

photoaquatint

photoautotroph

photoautotrophic

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Cite this Entry

“Photoautotroph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoautotroph. Accessed 14 Aug. 2022.

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More Definitions for photoautotroph

photoautotroph

noun
pho·​to·​au·​to·​troph | \ ˌfōt-ō-ˈȯt-ə-ˌtrōf How to pronounce photoautotroph (audio) \

Medical Definition of photoautotroph

: a photoautotrophic organism

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