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

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

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