Category: GeneralPart of speech: nounDifficulty: Intermediate

spectrum

/spectrum/Roman
US/ˈspɛktɹəm/
UK/spˈɛktɹəm/

English meaning: Spectrum

Definition

A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.

Example

“A prism splits white light into the full spectrum of colours.”

Another example: “Voters across the political spectrum welcomed the tax cut.”

Usage — When, Where & How

A formal-to-technical noun. Literally a band of colours (the rainbow) or frequencies (physics, radio); figuratively a full range of things ('the political spectrum'). 'On the spectrum' is now common shorthand for the autism spectrum. Plural 'spectra' in science.

Etymology & Origin

English — Origin & History

From Latin 'spectrum' (appearance, apparition), from 'specere' (to look); Newton applied it to the band of colours in the 1670s.

Synonyms

Related Words

  • analyzer
  • spectra
  • ghz
  • spectral
  • luminosity
  • wavelength
  • ultraviolet
  • absorption
  • commodore
  • infrared

Common Collocations

  • broad spectrum
  • political spectrum
  • across the spectrum
  • electromagnetic spectrum
  • color spectrum
  • autism spectrum

Word Forms

spectrum (n); spectra/spectrums (pl); spectral (adj)

Word Tools

2 syllables

Literary Heritage

“To thine own self be true, and it must follow, as the night the day, thou canst not then be false to any man.”

/To thine own self be true/

“Be honest with yourself — and as naturally as night follows day, you will be unable to be false to others.”

William Shakespeare · Playwright & Poet · 1564–1616

Hamlet, Act II

Hamlet, II.i — Polonius's parting words to Laertes; the most quoted line in Shakespeare

“I'm nobody! Who are you? Are you nobody, too?”

/I'm nobody! Who are you?/

“I am nobody — and that quiet anonymity is more honest than the noise of public fame.”

Emily Dickinson · Poet · 1830–1886

Poems

Poem 288 — Dickinson's subversive celebration of solitude over social recognition

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Language information

Language
English
English
Script
Latin
Family
Indo-European
Speakers
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