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oxygen cycle
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noun Ecology.
the process by which oxygen released into the atmosphere by photosynthetic organisms is taken up by aerobic organisms while the carbon dioxide released as a by-product of repiration is taken up for photosynthesis.
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Origin of oxygen cycle
First recorded in 1930–35
Words nearby oxygen cycle
oxygen acid, oxygenase, oxygenate, oxygenator, oxygen bar, oxygen cycle, oxygen debt, oxygen effect, oxygenize, oxygen lance, oxygen mask
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023