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

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

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