An‐as′tig‐mat″ic (?), a. [Pref. an-not + astigmatic.] (Optics) Not astigmatic; — said esp. of a lens system which consists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.
Conteúdo
Direitos e fontes
Consulte informações de fonte, licença e atribuição deste conteúdo.
Conteúdo
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.