- the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope. An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium
| 单词 | absorption spectrum |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 absorp′tion spec′trum, [Physics.]
Collins Concise English Dictionary © HarperCollins Publishers:: absorption spectrum n
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