1
[ adjective ] of or relating to a spectrum

Examples

"spectral colors" "spectral analysis"

Used in print

(Francis J. Johnston and John E. Willard, "The...)

It was possible to make estimates of the quantum yield by observing the extent of reduction of a uranyl_oxalate actinometer solution illuminated for a known time in a typical reaction cell and making appropriate conversions based on the differences in the absorption_spectra of uranyl_oxalate and of chlorine , and considering the spectral distribution of the light source .

Related terms

spectrum

2
[ adjective ] like or being a phantom

Examples

"a ghostly face at the window" "a phantasmal presence in the room" "spectral emanations" "spiritual tappings at a seance"

Related terms

supernatural

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