anastigmat
|a-nas-tig-mat|
C1
/ˌænəˈstɪɡmət/
lens correcting astigmatism
Etymology
Etymology Information
'anastigmat' originates from German, specifically the word 'Anastigmat', where 'an-' meant 'not' and 'Astigmat' referred to 'astigmatism'.
Historical Evolution
'Anastigmat' was adopted directly from the German word 'Anastigmat' into English in the late 19th century as lens technology advanced.
Meaning Changes
Initially, it referred specifically to a lens that corrected astigmatism, and this meaning has remained consistent in modern usage.
Meanings by Part of Speech
Noun 1
a type of photographic lens designed to correct astigmatism and produce sharp images across the entire field.
The photographer used an anastigmat to ensure the image was sharp from edge to edge.
Synonyms
Last updated: 2025/07/31 02:21