a band of coloured lights in order of their wavelengths, as seen in a rainbow and into which light may be separated 谱；光谱 A spectrum is formed by a ray of light passing through a prism. 一束光通过棱镜就会形成光谱。 Red and violet are at opposite ends of the spectrum. 红色和紫色位于光谱的两端。
Extra ExamplesOther species can perceive colours of the spectrum that are invisible to us. 其它物种能够感知光谱中我们看不到的颜色。 These wavelengths correspond to red in the visible spectrum. 这些波长相当于可见光谱中的红光。 a continuous spectrum of light waves 光波的连续谱 the ultraviolet part of the spectrum 光谱的紫外线部份
Oxford Collocations Dictionaryadjective- visible
- colour/color
- electromagnetic
- …
- the colours/colors of the spectrum
- the… end of the spectrum
- the… part of the spectrum
- …
a range of sound waves or several other types of wave 声谱；波谱；频谱 the electromagnetic/radio/sound spectrum 电磁波谱；射频频谱；声谱
- [usually singular]
a complete or wide range of related qualities, ideas, etc. 范围；各层次；系列；幅度 a broad spectrum of interests 广泛的兴趣范围 We shall hear views from across the political spectrum. 我们要听取各个政治派别的看法。
Extra ExamplesThe policy has the support of a broad spectrum of opinion. 该政策得到广泛的舆论支持。 a wide spectrum of interests 广泛的兴趣 These thinkers represent a wide spectrum of political perspectives. 这些思想家所代表的政治观点千差万别，范围很广。 There was consensus across the political spectrum. 政坛各界人士达成了共识。 The two speakers were chosen to represent opposite ends of the spectrum. 选出的两个发言人分别代表对立的两极。 The newspaper covers a broad spectrum of opinion. 这份报纸报道各种观点。 The courses cover the full spectrum of levels. 这些课程从初级到高级，各个水平都有。
Oxford Collocations Dictionaryadjective- complete
- full
- broad
- …
- cover
- span
- represent
- …
- across the spectrum
- spectrum of
- at one end of the spectrum
- at the other end of the spectrum
- both ends of the spectrum
- …
Word Originearly 17th cent. (in the sense ‘spectre’): from Latin, literally ‘image, apparition’, from specere ‘to look’.