oxygen cycle

noun

Definition of oxygen cycle

: the cycle whereby atmospheric oxygen is converted to carbon dioxide in animal respiration and regenerated by green plants in photosynthesis

Examples of oxygen cycle in a Sentence

Recent Examples on the Web This isn’t a call for protecting biodiversity, as noble a cause as that is, but safeguarding the carbon-to-oxygen cycle and weather regulation services of photosynthesising plants. Solitaire Townsend, Forbes, 8 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oxygen cycle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of oxygen cycle

1935, in the meaning defined above

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Time Traveler for oxygen cycle

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The first known use of oxygen cycle was in 1935

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Dictionary Entries Near oxygen cycle

oxygenator

oxygen cycle

oxygen debt

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Cite this Entry

“Oxygen cycle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxygen%20cycle. Accessed 18 Oct. 2021.

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More from Merriam-Webster on oxygen cycle

Britannica.com: Encyclopedia article about oxygen cycle

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