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, Spectral band, Spectral density estimation, Grothendieck spectral sequence, Serre spectral sequence, Applied Spectral Imaging, Spectral radius, Spectral theory, Spectral modeling synthesis, Arnold's spectral sequence, Multidimensional spectral estimation, Spectral imaging, Lyndon–Hochschild–Serre spectral sequence, Spectral bat, Spectral index, Spectral printing, Spectral analysis, Spectral interferometry, Spectral (disambiguation), Spectral tarsier, Spectral space, Spectral Souls: Resurrection of the Ethereal Empires, Joint spectral radius, Eilenberg–Moore spectral sequence, Spectral power distribution, Spectral centroid, Full spectral imaging, Spectral decomposition

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

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