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autotrophic

British  
/ ˌɔːtəˈtrɒfɪk, ˈɔːtətrəʊf /

adjective

  1. (of organisms such as green plants) capable of manufacturing complex organic nutritive compounds from simple inorganic sources such as carbon dioxide, water, and nitrates, using energy from the sun Compare heterotrophic

"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

Other Word Forms

Explanation

In biology, an autotrophic organism makes its own food. Algae, which creates food by absorbing sunlight, is autotrophic. The vast majority of plants are autotrophic, creating their own food through photosynthesis. Many types of fungi and bacteria are also autotrophic. This class of organisms is extremely important to the food chain — autotrophic organisms are also known as "primary producers," converting light energy into nutrition for animals that are higher up on the food chain. The roots of this word are auto-,"by oneself," and trophic, "pertaining to nutrition."

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Vocabulary lists containing autotrophic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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"This bacterium is an autotrophic organism, like a plant. It does, however, not need light like a plant, as it draws its energy from phosphite oxidation."

From Science Daily Nov. 10, 2023

That means researchers should be able to insert these changes autotrophic E. coli that eat formate, which is readily made by zapping CO2 in water with electricity.

From Science Magazine Nov. 27, 2019

Synthetic biologists have long tried to engineer plants and autotrophic bacteria to produce valuable chemicals and fuels from water and CO2, because it has the potential to be cheaper than other routes.

From Science Magazine Nov. 27, 2019

As a group, protists are very diverse and include unicellular, multicellular, heterotrophic, and autotrophic organisms.

From Textbooks Sep. 6, 2018

But the general significance of the term "autotrophic plants" is apparent.

From The Chemistry of Plant Life by Roscoe Wilfred Thatcher

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