telluric line

noun

Definition of telluric line

: any of the absorption lines or bands added to the spectrum of a heavenly body by various substances in the earth's atmosphere the telluric lines of nitrogen, oxygen, water vapor

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“Telluric line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/telluric%20line. Accessed 18 Sep. 2020.

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