carbon cycle

English Thesaurus

1. a thermonuclear reaction in the interior of stars (noun.process)

hypernym	:	thermonuclear reaction,
definition	:	a nuclear fusion reaction taking place at very high temperatures (as in the sun) (noun.process)

2. the organic circulation of carbon from the atmosphere into organisms and back again (noun.process)

hypernym	:	biological process, organic process,
definition	:	a process occurring in living organisms (noun.process)