spectral
adjective
of or relating to a spectrum
“spectral colors”
“spectral analysis”
resembling or characteristic of a phantom
“a ghostly face at the window”
“a phantasmal presence in the room”
Source: WordNet 3.1, Princeton University
Spectral meaning
What does “spectral” mean? Definitions, examples, synonyms and opposites.
“spectral” is an adjective with 2 meanings. Its most common meaning is: of or relating to a spectrum.