| specious | especioso |
| speciousness | especiosidad |
| speck | manchita |
| Speck of dust | Grano de polvo |
| speckle | mancha |
| Speckle imaging | Interferometría de manchas |
| Speckle interferometry | Interferometría de manchas |
| Speckle pattern | Interferometría de moteado |
| speckled | manchado |
| Speckled Dasyure | Neophascogale lorentzi |
| Speckled Pigeon | Columba guinea |
| Speckled Teal | Anas flavirostris |
| specs | gafas |
| spectacle | espectáculo |
| spectacled | con gafas |
| spectacled cobra | cobra india |
| Spectacled Porpoise | Phocoena dioptrica |
| Spectacled Warbler | Sylvia conspicillata |
| spectacles | gafas |
| spectacular | espectacular |
| spectacular show | obra espectacular |
| spectator | espectadora |
| spectators | espectador |
| specter | pesadilla |
| spectral | espectral |
| Spectral band replication | Replicación de la Banda Espectral |
| Spectral bands | Banda espectral |
| Spectral Bat | Vampiro |
| Spectral classification | Clasificación espectral |
| Spectral density | Densidad espectral |
| Spectral index | Índice espectral |
| Spectral indice | Índice espectral |
| Spectral line splitting | Desdoblamiento de las líneas |
| Spectral line width | Longitud de las líneas |
| Spectral music | Espectralismo |
| Spectral Tarsier | Tarsius tarsier |
| Spectral theorem | Teorema espectral |
| Spectral types | Clasificación estelar |
| spectre | pesadilla |
| spectrograph | espectrógrafo |
| Spectroheliographs | Espectroheliógrafo |
| spectrometer | espectrómetro |
| spectrometry | espectrometría |
| Spectrophotmetry | Espectrofotometría |
| Spectrophotography | Espectrofotografía |
| Spectrophotometers | Espectrofotómetro |
| spectroscope | espectroscopio |
| Spectroscopic binary star | Binaria espectroscópica |
| spectroscopy | espectroscopia |
