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

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

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