spectrum
- IPA[ˈspɛktrəm]
英式
- a band of colours, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.；the entire range of wavelengths of electromagnetic radiation.
noun: spectrum, plural noun: spectra
- 釋義
- 相關詞
- 片語
名詞
- 1. a band of colours, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.
- ▪ the entire range of wavelengths of electromagnetic radiation.
- ▪ a characteristic series of frequencies of electromagnetic radiation emitted or absorbed by a substance.
- ▪ the components of a sound or other phenomenon arranged according to such characteristics as frequency, charge, and energy.
- 2. used to classify something in terms of its position on a scale between two extreme points the left or the right of the political spectrum
- ▪ a wide range self-help books are covering a broader and broader spectrum
- plural form of spectrum
Oxford Dictionary
- plural form of spectrum
Oxford American Dictionary
- an emission spectrum consisting of separate isolated lines.
Oxford Dictionary
- an emission spectrum consisting of separate isolated lines.
Oxford American Dictionary
- a spectrum of the electromagnetic radiation emitted by a source.
Oxford Dictionary
- the range of wavelengths or frequencies over which electromagnetic radiation extends.
Oxford American Dictionary
- a distribution of ions shown by the use of a mass spectrograph or mass spectrometer.
Oxford Dictionary
- denoting antibiotics, pesticides, etc. effective against a large variety of organisms: pretreatment with broad-spectrum antibiotics
Oxford Dictionary
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- IPA[ˈspektrəm]
美式
- a band of colors, as seen in a rainbow, produced by separation of the components of light by ...
Oxford American Dictionary
