01 a. Of or pertaining to a specter; ghosty.
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1.
Of or pertaining to a specter; ghosty.“He that feels timid at the spectral form of evil is not the man to spread light.” — F. W. Robertson.
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2.
Of or pertaining to the spectrum; made by the spectrum; as, spectral colors; spectral analysis.(Opt.)
Phrases & compounds
Spectral lemur —
See Tarsius.