spectral
//ˈspɛktrəl//
Adjective
spectralCanonical form
more spectralComparative
most spectralSuperlative
1
Resembling or suggesting a ghost; ghostly or phantom-like in appearance.
A spectral figure appeared in the mist.
2
Relating to or produced by a spectrum, especially of light or other electromagnetic radiation.
The scientist analyzed the spectral lines of the distant star.