Spectral, Spectral sequence, Spectral color, Spectral music, Spectral density, Spectral theorem, Spectral efficiency, Adams spectral sequence, Spectral line, Spectral mask, Hodge–de Rham spectral sequence, Spectral gap, Spectral method, Frölicher spectral sequence, Arnold's spectral sequence, Serre spectral sequence, Spectral density estimation, Spectral band, Grothendieck spectral sequence, Spectral radius, Applied Spectral Imaging, Spectral theory, Spectral modeling synthesis, Spectral imaging, Spectral index, Spectral printing, Spectral bat, Multidimensional spectral estimation, Lyndon–Hochschild–Serre spectral sequence, Spectral analysis, Spectral interferometry, Joint spectral radius, Spectral (disambiguation), Spectral space, Spectral Souls: Resurrection of the Ethereal Empires, Spectral tarsier, Eilenberg–Moore spectral sequence, Full spectral imaging, Spectral power distribution, Spectral centroid, Spectral decomposition

Spectral energy distribution, Spectral Sciences Incorporated, Maximum entropy spectral estimation, Spectral dimension, Spectral network, Källén–Lehmann spectral representation, Peptide spectral library, Spectral Force 3, Spectral band replication, Least-squares spectral analysis, Atiyah–Hirzebruch spectral sequence, Spectral induced polarisation, Spectral Associates, Spectral gap (physics), Regularization by spectral filtering, Spectral flux density, CDMA spectral efficiency, Cosmic microwave background spectral distortions, Noise spectral density, Spectral element method, Spectral resolution, Gursky's spectral tarsier, Asteroid spectral types, Line spectral pairs, Free spectral range, Čech-to-derived functor spectral sequence, Spectral line shape, Spectral slope, Spectral signature, Spectral Evidence (1997 book), Radiant flux, Spectral Display, Spectral sensitivity, Spectral Worship, Orthogonal polarization spectral imaging, Stellar classification, Onwards to the Spectral Defile, Polynomial matrix spectral factorization, Spectral width, Spectral abscissa, Spectral atlas, Spectral noise logging, Radiant intensity, Spectral rendering, Radiometry, Spectral acceleration, Spectral asymmetry, Radiant exitance, Spectral Lines, Radiant exposure

Spectral, Spectral sequence, Spectral color, Spectral music, Spectral density, Spectral theorem, Spectral efficiency, Adams spectral sequence, Spectral line, Spectral mask, Hodge–de Rham spectral sequence, Spectral gap, Spectral method, Frölicher spectral sequence, Arnold's spectral sequence, Serre spectral sequence, Spectral density estimation, Spectral band, Grothendieck spectral sequence, Spectral radius, Applied Spectral Imaging, Spectral theory, Spectral modeling synthesis, Spectral imaging, Spectral index, Spectral printing, Spectral bat, Multidimensional spectral estimation, Lyndon–Hochschild–Serre spectral sequence, Spectral analysis, Spectral interferometry, Joint spectral radius, Spectral (disambiguation), Spectral space, Spectral Souls: Resurrection of the Ethereal Empires, Spectral tarsier, Eilenberg–Moore spectral sequence, Full spectral imaging, Spectral power distribution, Spectral centroid, Spectral decomposition, Spectral energy distribution, Spectral Sciences Incorporated, Maximum entropy spectral estimation, Spectral dimension, Spectral network, Källén–Lehmann spectral representation, Peptide spectral library, Spectral Force 3, Spectral band replication, Least-squares spectral analysis, Atiyah–Hirzebruch spectral sequence, Spectral induced polarisation, Spectral Associates, Spectral gap (physics), Regularization by spectral filtering, Spectral flux density, CDMA spectral efficiency, Cosmic microwave background spectral distortions, Noise spectral density, Spectral element method, Spectral resolution, Gursky's spectral tarsier, Asteroid spectral types, Line spectral pairs, Free spectral range, Čech-to-derived functor spectral sequence, Spectral line shape, Spectral slope, Spectral signature, Spectral Evidence (1997 book), Radiant flux, Spectral Display, Spectral sensitivity, Spectral Worship, Orthogonal polarization spectral imaging, Stellar classification, Onwards to the Spectral Defile, Polynomial matrix spectral factorization, Spectral width, Spectral abscissa, Spectral atlas, Spectral noise logging, Radiant intensity, Spectral rendering, Radiometry, Spectral acceleration, Spectral asymmetry, Radiant exitance, Spectral Lines, Radiant exposure, Spectral phase interferometry for direct electric-field reconstruction, Spectral clustering, Hydrogen spectral series, Spectral flatness, Spectral submanifold, Spectral splatter, Leray spectral sequence, Spectral Genomics, Spectral leakage, The Spectral Sorrows, Reflectance, Radiance, Irradiance, Spectral Hash, Chromatic spectral sequence, Spectral geometry, Frequency principle/spectral bias, Spectral Dusk, Spectral Evidence, Spectral Mornings, Spectral shape analysis, May spectral sequence, Spectral (Skyfire album), Spectral triple, Spectral glide, Spectral graph theory, Pseudo-spectral method, Spectral pygmy chameleon, Spectral purity, Spectral concentration problem, Spectral Evidence (poetry collection), Spectral broadening, Alexis Spectral Data, Spectral layout, EHP spectral sequence, Spectral evidence, Multispectral imaging, Spectral (Dave Rempis album), Spectral flux, Spectral variability hypothesis, Spectral set, Spectral correlation density, Spectral risk measure, Spectral Database for Organic Compounds, Log-spectral distance, Spectral imaging (radiography), Bockstein spectral sequence, Quillen spectral sequence, Multi-spectral camouflage, Projection-valued measure, Freudenthal spectral theorem, Spectral invariants, Spectral regrowth, Radiosity (radiometry), Colorimetry, Spatiospectral scanning, Spectral expansion solution, Phasor approach to fluorescence lifetime and spectral imaging, Trans-Neptunian spectral types, Spectral line ratios