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

Spectral decomposition, Spectral energy distribution, Källén–Lehmann spectral representation, Maximum entropy spectral estimation, Spectral network, Spectral dimension, Spectral band replication, Spectral Force 3, Atiyah–Hirzebruch spectral sequence, Peptide spectral library, Spectral flux density, Least-squares spectral analysis, Spectral induced polarisation, Cosmic microwave background spectral distortions, Spectral gap (physics), Spectral element method, Noise spectral density, Spectral Associates, CDMA spectral efficiency, Regularization by spectral filtering, 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, Stellar classification, Onwards to the Spectral Defile, Spectral Evidence (1997 book), Radiant flux, Spectral Display, Spectral sensitivity, Spectral Worship, Spectral atlas, Orthogonal polarization spectral imaging, Spectral width, Spectral noise logging, Spectral rendering, Spectral abscissa, Radiant intensity, Spectral phase interferometry for direct electric-field reconstruction, Polynomial matrix spectral factorization, Radiometry, Radiant exitance, The Spectral Sorrows, Spectral acceleration, Spectral asymmetry

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