Carbon cycle
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The physical cycle of carbon through the Earth’s biosphere, geosphere, hydrosphere and atmosphere that includes such processes as photosynthesis, decomposition, respiration and carbonification.
- 2 a thermonuclear reaction in the interior of stars wordnet
- 3 the organic circulation of carbon from the atmosphere into organisms and back again wordnet