Search Result for "anastigmat": 
Wordnet 3.0

NOUN (1)

1. compound lens or lens system designed to be free of astigmatism and able to form approximately point images; 



The Collaborative International Dictionary of English v.0.48:

anastigmat \anastigmat\ n.
   1. compound lens or lens system designed to be free of
      astigmatism and able to form approximately point images.
      [WordNet 1.5]


WordNet (r) 3.0 (2006):

anastigmat
    n 1: compound lens or lens system designed to be free of
         astigmatism and able to form approximately point images