especially: relating to or derived from the electromagnetic spectrum of visible light
Surfaces can differ in the proportion of incident light they reflect (dark ones reflect less than light ones) and in the spectral composition of the light they reflect. —Principles Of Neural Science
Their examination supported the opinion that the stone was mined in India and cut in London. They also found that the spectral characteristics overlap those of known treated green diamonds. —Lapidary Journal
Recent Examples on the WebPreviously, other researchers used an instrument on SOFIA to examine particular wavelengths of light, called spectral signatures, emitted by molecules on the moon.—Catherine Duncan, Smithsonian Magazine, 16 Feb. 2024 The results of the study showed that changes in the spectral signatures of the macular pigment were strongly associated with changes in the severity of the disease.—William A. Haseltine, Forbes, 15 Feb. 2024 Kai’s ghost won’t leave Cam alone; his spectral visits wild, tender, and unexpected.—Sarah Yang, Sunset Magazine, 7 Feb. 2024 Its compact design, roughly the size of 10cm x 10cm x 10cm, stands in stark contrast to the bulky nature of traditional spectral thermal imagers.—IEEE Spectrum, 3 Feb. 2024 The resulting quantum dots had a good size distribution and were tunable over a broad spectral range, including SWIR.—Jennifer Ouellette, Ars Technica, 18 Jan. 2024 Sally Mann has made spectral trees and forests befogged with darkness into metaphors for the unresolved traumas of history.—Philip Kennicott, Washington Post, 24 Jan. 2024 Normally, gaseous atmospheric methane in a brown dwarf absorbs the infrared light that comes up from below, so there’s a dip in brightness at certain spectral wavelengths.—Phil Plait, Scientific American, 19 Jan. 2024 The movie is shot from the perspective of the spectral entity at its center.—Brent Lang, Variety, 12 Jan. 2024 See More
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