[ uh-nas-tig-mat, an-uh-stig-mat ]
/ əˈnæs tɪgˌmæt, ˌæn əˈstɪg mæt /

noun Optics.

a compound lens corrected for the aberrations of astigmatism and curvature of field.

Origin of anastigmat

1885–90; < German, back formation from anastigmatisch anastigmatic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for anastigmat

  • This makes a most desirable outfit at a surprisingly low price for an anastigmat equipment.

    Kodaks and Kodak Supplies, 1914|Canadian Kodak Company
  • For those, however, who wish even greater efficiency and capabilities, we supply the anastigmat lens equipments.

    Kodaks and Kodak Supplies, 1914|Canadian Kodak Company

British Dictionary definitions for anastigmat

/ (æˈnæstɪɡˌmæt, ˌænəˈstɪɡmæt) /


a lens or system of lenses designed to be free of astigmatism

Word Origin for anastigmat

C19 from an- + astigmatic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012