Littrow spectrograph

noun Lit·trow spectrograph \ˈli‧ˌtrō-\

Definition of Littrow spectrograph

  1. :  a spectrograph in which dispersion is produced by a prism backed by a reflecting metallic film so that the light traverses the prism twice

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Origin and Etymology of littrow spectrograph

after Joseph Johann von Littrow †1840 Austrian astronomer and mathematician

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to criticize severely

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