spectral
	英 ['spektr(ə)l]
美['spɛktrəl]
	    
    英英释意
	
	- 1. of or relating to a spectrum;
 - "spectral colors"
 - "spectral analysis"
 
- 2. like or being a phantom;
 - "a ghostly face at the window"
 - "a phantasmal presence in the room"
 - "spectral emanations"
 - "spiritual tappings at a seance"