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astigmatizer

[ uh-stig-muh-tahy-zer ]
/ əˈstɪg məˌtaɪ zər /
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noun Optics.
a cylindrical lens used in a rangefinder to draw out the point image of a point source into a line.
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Origin of astigmatizer

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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