absorption spectrum
21Spectrum — Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed… …
22Spectrum analysis — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… …
23Absorption spectroscopy — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as a specific example. A white beam source – emitting light of multiple wavelengths – is focused on a sample (the complementary… …
24Absorption band — An absorption band is a range of wavelengths (or, equivalently, frequencies) in the electromagnetic spectrum which are able to excite a particular transition in a substance. See absorption spectrum. Since energetic transitions can take place in… …
25spectrum — /spek treuhm/, n., pl. spectra / treuh/, spectrums. 1. Physics. a. an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass: often the band of colors… …
26absorption band — noun a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths • Hypernyms: ↑optical phenomenon * * * noun : a dark band in an absorption spectrum * * * Physics. a… …
27absorption line — noun : a dark line in the absorption spectrum of a gas or a vapor * * * absorption line, a dark line in a continuous spectrum of white light caused by the natural or artificial absorption of the wavelengths of light radiating from the atoms of a… …
28Spectrum (disambiguation) — A spectrum is a condition or value that is not limited to a specific set of values but can vary infinitely within a continuum.Spectrum may refer to:In physical sciences: * electromagnetic spectrum ** visible spectrum or optical spectrum, a subset …
29absorption band — noun Date: 1865 a dark band in an absorption spectrum; also absorption line …
30Absorption edge — An absorption edge is a sharp discontinuity in the absorption spectrum of X rays by an element that occurs when the energy of the photon corresponds to the energy of a shell of the atom …
