No ghost stood beside me, nor anything of spectral aspect; merely a motherly, dumpy little woman, in a large shawl, a wrapping-gown, and a clean, trim nightcap. Charlotte Brontë
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 WebNext up for researchers is to use JWST’s NIRSpec instrument for six hours in October to measure the star’s brightness, temperature, mass and spectral properties. Jamie Carter, Forbes, 15 Aug. 2022 From his perch in Transylvania, Orban summoned the spectral menace of racist ideologies that have long haunted Europe. Ishaan Tharoor, Washington Post, 2 Aug. 2022 In sound and in cultural footprint, the beloved 63-year-old performer has always been forward-thinking, spectral, and adverse to cliché. Spencer Kornhaber, The Atlantic, 29 June 2022 The air pockets scatter light and the melanin pigments absorb a specific range of spectral light colors, which causes the feathers to reflect a single, very intense, color. Grrlscientist, Forbes, 26 June 2022 His physical presence feels as spectral as his music. Chris Wheatley, Longreads, 31 July 2022 Plus, the discovery is likely to spark follow-up observations with finer spectral chunks that will allow the exact distance to be measured with more confidence. John Timmer, Ars Technica, 22 July 2022 Careful spectral analysis can reveal which arcs in deep-field images are actually mirror images and which are instead mirages. Fionna M. D. Samuels, Scientific American, 21 July 2022 This spectral quality is bewildering, even to mathematicians. Alec Wilkinson, The New Yorker, 8 July 2022 See More