Word: spectral
Phonetic:
/ˈspɛktɹəɫ/Listen:
Of, or pertaining to, spectres; ghostly. Example: The spectral chain-rattling and moans gave me the chills.
Of, or pertaining to, spectra; classified according to frequency or wavelength (of light etc)
You can find a list of possible crossword clues for SPECTRAL below.