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

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

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