Spectral

//ˈspɛktɹəɫ// adj

adj ·Moderate ·High school level

Definitions

Adjective
  1. 1
    Of, or pertaining to, spectres; ghostly.

    "The spectral chain-rattling and moans gave me the chills."

  2. 2
    Of, or pertaining to, spectra; classified according to frequency or wavelength (of light etc.).
Adjective
  1. 1
    resembling or characteristic of a phantom wordnet
  2. 2
    of or relating to a spectrum wordnet

Synonyms

All synonyms
apparitionalairyall in the mindapparentapparitionalastral

Example

More examples

"This December, NASA is launching an instrument to the International Space Station to continue monitoring the Sun’s energy input to the Earth system. The Total and Spectral solar Irradiance Sensor (TSIS-1) will precisely measure what scientists call “total solar irradiance.”"

Etymology

Etymology 1

From spectre + -al.

Etymology 2

From spectrum + -al.

Related phrases

hydrogen spectral seriesspectral batspectral classspectral gatingspectral linespectral owlspectral setspectral theoremspectral theoryspectral type

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.