spectrum Definition in the Cambridge English Dictionary
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Definition of “spectrum” - English Dictionary

Definition of "spectrum" - American English Dictionary

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spectrumnoun [C]

 us   /ˈspek·trəm/

spectrum noun [C] (RANGE)

a ​range of ​objects, ​ideas, or ​opinions: There’s ​agreementacross the ​political spectrum. A ​wide spectrum of ​opinion was ​represented at the ​meeting.

spectrum noun [C] (COLORS)

(plural spectra  /ˈspek·trə/ or spectrums) physics the set of ​colors into which a ​beam of ​light can be separated (plural spectra  /ˈspek·trə/ or spectrums) physics Spectrum also ​means a ​range of waves such as ​lightwaves or ​radiowaves.
(Definition of spectrum from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "spectrum" - British English Dictionary

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spectrumnoun [C]

uk   us   /ˈspek.trəm/ (plural spectra or spectrums)

spectrum noun [C] (COLOURS)

C2 the set of ​colours into which a ​beam of ​light can be ​separated, or a ​range of ​waves, such as ​lightwaves or ​radiowaves: The ​colours of the spectrum - ​red, ​orange, ​yellow, ​green, ​blue, ​indigo, and ​violet - can be ​seen in a ​rainbow.
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spectrum noun [C] (RANGE)

C1 a ​range of ​opinions, ​feelings, etc.: He has ​support from ​across the ​whole political spectrum. The ​groupincludesstudents from both ​ends of the social spectrum (= ​range of ​socialclasses). A ​wide spectrum ofopinion was ​represented at the ​meeting.
(Definition of spectrum from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "spectrum" - Business English Dictionary

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spectrumnoun [C]

uk   us   /ˈspektrəm/
a ​range of similar things: a spectrum of sth A ​methodology will have to be ​developed to gradually ​cover the entire spectrum of ​technologies. a wide/broad spectrumthe economic/business/political spectrum He has ​support from across the whole ​political spectrum.
(Definition of spectrum from the Cambridge Business English Dictionary © Cambridge University Press)
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