spectral

a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

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Collins

World English Dictionary

spectral (ˈspɛktrəl)

—*adj*
1.	of or like a spectre
2.	of or relating to a spectrum: spectral colours
3.	physics (of a physical quantity) relating to a single wavelength of radiation: spectral luminous efficiency

spectrality

—n

'spectralness

—n

'spectrally

—*adv*

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage

Medical Dictionary

spectral spec·tral (spěk'trəl)
adj.
Of, relating to, or produced by a spectrum.

spec·tral'i·ty (-trāl'ĭ-tē) or spec'tral·ness (-trəl-nĭs) n.

Example sentences

But crosstalk cancellation has always introduced audible spectral coloration.

Color is simpy the product of the spectral irradiance of the object and the

spectral sensitivity of our eye.

The name refers to magic spells and spectral apparitions.

So the spectral selection is related to absorption, and not reflection as is

sometimes thought.

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carbon star color index color temperature continuous spectrum coronium dwarf star

Matching Quote

"Modern thought has transferred the spectral character of Death to the notion of time itself. Time has become Death triumphant over all."

-John Berger