13-letter words containing spectr
- band spectrum — a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules
- line spectrum — an electromagnetic spectrum consisting of discrete lines, usually characteristic of excited atoms or molecules.
- mass spectrum — a spectrum of charged particles, arranged in order of mass or mass-to-charge ratios.
- multispectral — (of an airborne camera or scanner) capable of sensing and recording radiation from invisible as well as visible parts of the electromagnetic spectrum.
- spectral line — a line in a spectrum due to the absorption or emission of light at a discrete frequency.
- spectral type — a category for classifying a star, as A star or G star, according to features of its spectrum, as its shape as a function of temperature and wavelength and its absorption spectrum, that indicate the surface temperature of the star and the presence of particular atoms or molecules in its outer layers: principal types are spectral types O, B, A, F, G, K, and M.
- spectrography — a spectroscope for photographing or producing a representation of a spectrum.
- spectroscopic — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
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