Spectral - Definition
spectral
adj 1: of or relating to a spectrum; "spectral colors";
"spectral analysis"
2: resembling or characteristic of a phantom; "a ghostly face at
the window"; "a phantasmal presence in the room"; "spectral
emanations"; "spiritual tappings at a seance" [syn:
apparitional, ghostlike, ghostly, phantasmal,
spectral, spiritual]