absorption line

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English[edit]

Pronunciation[edit]

  • (US) IPA(key): /æbˈsɔɹp.ʃn̩ laɪn/, /æbˈzɔɹp.ʃn̩ laɪn/, /əbˈzɔɹp.ʃn̩ laɪn/, /əbˈsɔɹp.ʃn̩ laɪn/

Noun[edit]

absorption line (plural absorption lines)

  1. (physics, astronomy) A spectral line that corresponds to the absorption of electromagnetic radiation at a specific wavelength; the pattern of such lines is characteristic of specific atoms or molecules in the path of the radiation.

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