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parfocal

American

[pahr-foh-kuhl] / pɑrˈfoʊ kəl /

adjective

Optics.

of or relating to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.

Etymology

Origin of parfocal

First recorded in 1885–90; par ¹ + focal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rumour that David Gill may get involved #mufc Preamble: Yesterday figures close to Wayne Rooney let it be known that he was considering a move from Old Trafford; today the media's parfocal lens is focused on a silly-money transfer to Manchester City.

From The Guardian

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023