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English Words Starting With S
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- spectrofluorimeter/ˌspɛktrəʊflʊəˈrɪmɪtə/A scientific instrument that measures the intensity and wavelength distribution of light emitted by a substance after it has absorbed light.nounVery Rare / Technical
- spectrogram/ˈspɛktrə(ʊ)ɡram/A visual representation of the spectrum of frequencies in a sound or other signal as they vary with time.nounC2
- spectrograph/ˈspɛktrə(ʊ)ɡrɑːf/A scientific instrument that records a spectrum of light or other radiation, often as a photographic or digital image.nounC2
- spectroheliogram/ˌspek.trəʊˈhiː.li.ə.ɡræm/A photographic image of the sun obtained using a spectroheliograph, isolating light from a specific wavelength, usually from hydrogen or calcium.nounVery Low
- spectroheliograph/ˌspɛktrəʊˈhiːlɪəˌɡrɑːf/An astronomical instrument used to photograph the Sun in a single wavelength of light, typically to study specific solar features.nounLow
- spectrohelioscope/ˌspɛktrəʊˈhiːlɪəskəʊp/An instrument used in solar astronomy to observe the Sun's chromosphere and prominences in a single wavelength of light, typically the hydrogen-alpha (H-α) line.nounLow/Very Rare
- spectrology/spɛkˈtrɒlədʒi/The study or interpretation of specters, ghosts, or apparitions.nounVery Low
- spectrometer/spɛkˈtrɒm.ɪ.tə/An instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically to identify materials.nounC1
- spectromicroscope/ˌspektrəʊˈmaɪkrəskəʊp/An instrument that combines microscopy and spectroscopy to analyze materials at a microscopic scale.nounSpecialized
- spectrophotometer/ˌspek.trəʊ.fəʊˈtɒm.ɪ.tər/An instrument that measures the intensity of light at different wavelengths, used to analyze the concentration of substances in a sample.nounC2
- spectropolarimeter/ˌspek.trəʊ.pəʊ.ləˈrɪm.ɪ.tə/An instrument that measures the polarization of light across different wavelengths.nounVery Low
- spectropolariscope/ˌspek.trəʊ.pəʊˈlær.ɪ.skəʊp/A scientific instrument for analyzing the polarization of light across different wavelengths.nounVery Low
- spectroradiometer/ˌspek.trəʊˌreɪ.diˈɒm.ɪ.tər/A scientific instrument that measures the intensity of light (radiant flux) across the electromagnetic spectrum, wavelength by wavelength.nounVery Low (C2/Technical Only)
- spectroscope/ˈspɛktrəskəʊp/An optical instrument used for splitting light (or other electromagnetic radiation) into its component wavelengths or frequencies, producing a spectrum for analysis.nounC2
- spectroscopic analysis/ˌspek.trəˌskɒp.ɪk əˈnæl.ə.sɪs/The identification of substances or the examination of their structure by measuring and interpreting the interaction of electromagnetic radiation (light) with matter.nounC2+ / Very Low Frequency
- spectroscopic binary/ˌspek.trəˈskɒp.ɪk ˈbaɪ.nər.i/A binary star system detected through spectroscopic methods, where the stars are too close to be resolved individually, but their orbital motion causes shifts in spectral lines.nounlow
- spectroscopy/spɛkˈtrɒs.kə.pi/The scientific study of the interaction between matter and electromagnetic radiation, used to identify substances and analyze their structure.nounC1/C2
- spectrum/ˈspɛk.trəm/The entire range of different colours of light, arranged according to their wavelength, or more broadly, a complete range of opinions, positions, qualities, or conditions between two extremes.nounB2
- spectrum analyser/ˈspɛktrəm ˌæn.ə.laɪ.zər/A device or system that measures the magnitude of various frequency components of a signal.nounlow
- spectrum analysis/ˈspɛktrəm əˈnæləsɪs/The process of breaking down a complex signal or phenomenon into its constituent frequencies or components to study their individual properties and relationships.nounC1
Showing 9861–9880 of 15552 words.