noun a large brass wind instrument, formerly used in the orchestra and in military bands, having a loud tone, deep pitch, and a compass of three octaves;
now generally supplanted by bass and contrabass tubas.
noun a large brass wind instrument, formerly used in the orchestra and in military bands, having a loud tone, deep pitch, and a compass of three octaves;
now generally supplanted by bass and contrabass tubas.
Webster English vocab. Английский словарь Webster. 2012