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

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

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