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carbohydrate
carbohydrate loading
carbolic acid
carbon
carbon 12
carbon 14
carbon-14 dating
carbon arc
carbon bisulfide
carbon black
carbon brush
carbon copy
carbon-copy
carbon cycle
carbon dating
carbon dioxide
carbon dioxide fertilization
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carbon-nitrogen cycle
car·bon-ni·tro·gen cy·cle (plural car·bon-ni·tro·gen cy·cles)


noun 
Definition:
 
physics astronomy chemistry 
Same as  carbon cycle (sense 2)

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