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Meaning of carbon-nitrogen-oxygen cycle | Babel Free

Noun CEFR B2

Definitions

A group of nuclear reactions, involving the interaction of protons with carbon, nitrogen and oxygen nuclei, thought to be the main source of energy in main-sequence stars of greater than 1.4 solar mass.

uncountable

Equivalents

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

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