SPECTRAL
Spec"tral, a.
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.
2. (Opt.)
Defn: Of or pertaining to the spectrum; made by the spectrum; as, spectral colors; spectral analysis. Spectral lemur. (Zoöl.) See Tarsius.
SPECTRALLY
Spec"tral*ly, adv.
Defn: In the form or manner of a specter.
SPECTRE
Spec"tre, n.
Defn: See Specter.
SPECTROBOLOMETER
Spec`tro*bo*lom"e*ter, n. (Physics)
Defn: A combination of spectroscope and bolometer for determining the distribution of energy in a spectrum. —Spec`tro*bo`lo*met"ric (#), a.