spectral

• Qui se rapporte à un spectre ou à un fantôme, ou qui évoque un fantôme ; également utilisé dans un contexte scientifique pour désigner ce qui appartient au spectre lumineux ou aux longueurs d'onde.

Relating to or resembling a ghost or spirit; also used in scientific contexts to describe a spectrum or wavelengths.

1. B2formalscientific

   Of or relating to a spectrum, especially in physics or optics.

   spectral (relatif au spectre)

   • The spectral lines of hydrogen are well-documented.
   • Spectral analysis is used to identify chemical elements.
   • The telescope captured spectral data from distant stars.

2. Ghostly or phantom-likeB2formal

   Resembling or characteristic of a ghost or phantom; eerie and otherworldly.

   spectral (sens de fantomatique)

   • A spectral figure appeared in the dimly lit hallway.
   • The old house had a spectral atmosphere at night.
   • She heard a spectral whisper in the empty room.

   Synonymesapparitionaleerieetherealghostlyotherworldlyphantasmalphantomshadowyunearthlywraithlike

   Antonymescorporealmaterialphysicalsubstantialtangible