Part of speech: noun

The science that treats of light, vision, and sight.

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Usage examples "optics":

  1. Love of life has a very different effect on the optics,- it makes a man wofully dim of inspection, and sometimes causes him to see his own property in another man's purse! - "Paul Clifford, Volume 6.", Edward Bulwer-Lytton.
  2. Townley states that Gascoigne had completed a treatise on optics, which was ready for publication, but that no trace of the manuscript could be discovered after his death. - "The Astronomy of Milton's 'Paradise Lost'", Thomas Orchard.
  3. I've got my eye on some companies- domestic natural gas, fiber optics, fuel cell technology. - "O+F", John Moncure Wetterau.