Swan spectrum

noun \-nz¦p-, -n¦sp-\

Definition of Swan spectrum

  1. :  the spectrum of the blue cone in a Bunsen burner when operating strongly caused by the excitation of carbon compounds; also :  a similar spectrum observed in some vacuum-tube discharges

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Origin and Etymology of swan spectrum

after William Swan †1894 English physicist

Seen and Heard

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a rounded knoll or a ridge of ice

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