Carbon cycle

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 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. 2
    a thermonuclear reaction in the interior of stars wordnet
  3. 3
    the organic circulation of carbon from the atmosphere into organisms and back again wordnet