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Meaning of Rubens' tube | Babel Free

Noun CEFR B2

Definitions

A long tube with a series of small flames coming out the top, the heights of which show the waveform of the sound in the tube.

CEFR level

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

See also

Rubenstein Rubenstein's Revenge rubeola rubeosis iridis ruberoside Rubert

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