Meaning of singing flame | Babel Free
Definitions
A flame, as of hydrogen or coal gas, burning within a tube and so adjusted as to set the air within the tube in vibration, causing sound; a chemical harmonicon.
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.