Meaning of phenonium | Babel Free
Definitions
Any of a class of arenium ions in which a cyclohexadienyl cation is spiro-annulated with a cyclopropane unit.
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.