spectral

Of or resembling a specter; ghostly.

Of, relating to, or produced by a spectrum.

Of or pertaining to a specter; resembling or having the aspect of a specter; ghostlike: ghostly.

Pertaining to ocular spectra, or pertaining to the solar, prismatic, or diffraction spectrum; exhibiting the hues of the prismatic spectrum; produced by the aid of the spectrum: as, spectral colors; spectral analysis.

In zoology, like or likened to a specter or apparition; suggestive of a ghost in any way: as, the spectral bat; spectral shrimps; spectral insects.

Of or pertaining to a specter; ghosty.

Of or pertaining to the spectrum; made by the spectrum

See Tarsius.

Having the appearance of a spectre; ghostly.

Of, or pertaining to, spectres.