Meaning of oxygen-18 | Babel Free
Definitions
A stable isotope of oxygen, ¹⁸₈O, with 8 protons and 10 neutrons; it amounts to about 0.2% of the element in nature
uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.