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Meaning of pentaoxolane | Babel Free

Noun CEFR C1

Definitions

The unstable allotrope of oxygen (O₅) composed of a ring of five atoms

uncountable

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

pentapalladium pentapeptidase pentapeptide pentapetalous pentaphene pentaphenyl