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, Spectral modeling synthesis, Multidimensional spectral estimation, Spectral index, Arnold's spectral sequence, Spectral bat, Spectral imaging, Lyndon–Hochschild–Serre spectral sequence, Spectral printing, Spectral interferometry, Spectral analysis, Joint spectral radius, Spectral (disambiguation), 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, Maximum entropy spectral estimation, Spectral network, Källén–Lehmann spectral representation, Spectral dimension, Spectral Force 3, Peptide spectral library, Least-squares spectral analysis, Spectral band replication, Atiyah–Hirzebruch spectral sequence, Regularization by spectral filtering, Spectral Associates, Spectral flux density, Spectral induced polarisation, Spectral gap (physics), Cosmic microwave background spectral distortions, CDMA spectral efficiency, Spectral resolution, Noise spectral density, Spectral element method, 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, Onwards to the Spectral Defile, Orthogonal polarization spectral imaging, Spectral Display, Spectral sensitivity, Spectral Worship, Stellar classification, Spectral atlas, Spectral noise logging, Spectral abscissa, Spectral width, Radiometry, Polynomial matrix spectral factorization, Spectral rendering, Spectral asymmetry, Radiant intensity, Spectral acceleration, Spectral clustering, Spectral phase interferometry for direct electric-field reconstruction, Radiant exitance

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