Wollaston doublet

noun Wol·las·ton doublet \ˈwu̇ləstən-\

Definition of Wollaston doublet

  1. :  a magnifying glass made of two plano-convex lenses and designed to correct spherical and chromatic aberration

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Origin and Etymology of wollaston doublet

after William H. Wollaston †1828

Seen and Heard

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to criticize severely

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