Definition of anastigmatic in English:

anastigmatic

adjective

  • (of a lens system) constructed so that the astigmatism of each element is canceled out.

    ‘Devices that reduce technical difficulty and anastigmatic time when repairing large vessels such as the thoracic aorta would be beneficial.’
    • ‘Important special cases of stationary anastigmatic mounts and their performance are presented.’
    • ‘By increasing 2, as compared to the anastigmatic design, the coma can be cancelled completely.’
    • ‘It is thus an object of this invention to provide a three mirror anastigmatic optical system employing conic mirrors wherein the system is off-axis in both aperture and field angle.’
    • ‘A table of parameters for anastigmatic lenses is included.’

Pronunciation

anastigmatic

/ˌanəˌstiɡˈmadik/ /ˌænəˌstɪɡˈmædɪk/

Origin

Late 19th century from an-‘not’ + astigmatic (see astigmatism).