Meaning of SPECTRUM in English

SPECTRUM

(spectra, or ~s)

1.

The ~ is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the ~.

N-SING: the N

2.

A ~ is a range of a particular type of thing.

Politicians across the political ~ have denounced the act...

The term ‘special needs’ covers a wide ~ of problems.

N-COUNT: usu sing, with supp

3.

A ~ is a range of light waves or radio waves within particular frequencies.

Vast amounts of energy, from X-rays right through the ~ down to radio waves, are escaping into space...

N-COUNT

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .