Absorption Spectrum Definition

noun
The electromagnetic spectrum, broken by a specific pattern of dark lines or bands, observed when radiation traverses a particular absorbing medium and through a spectroscope. The absorption pattern of an element is unique and can be used to identify the substance of the medium.
American Heritage
A spectrum with a pattern of dark bands or lines created when light passes through a gas or liquid into a spectroscope: the chemical elements of the gas or liquid absorb specific wavelengths of light creating a unique pattern which can be used to analyze the gas or liquid chemically.
Webster's New World

(physics) The characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope.

Wiktionary

Other Word Forms of Absorption Spectrum

Noun

Singular:
absorption spectrum
Plural:
absorption-spectrums

Absorption Spectrum Sentence Examples

  • It is conspicuous by its absorption spectrum in many of the white stars.

  • The salts show a characteristic absorption spectrum.

  • Its salts are reddish violet in colour, and give a characteristic absorption spectrum.

  • The experiment proves only the transparency of the gases experimented upon, and this is confirmed by the fact that bodies like bromine and iodine give on heating an emission spectrum corresponding to the absorption spectrum seen at ordinary temperatures.

  • The most typical case in this respect is the effect of a solvent on the absorption spectrum of a solution.

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