oxygen cycle


nounEcology.
  1. 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.

Origin of oxygen cycle

1
First recorded in 1930–35

Words Nearby oxygen cycle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024