parfocal

[ 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.

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a cylindrical wooden container with slightly bulging sides.
Worn down by dullness, tedious repetition.
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Origin of parfocal

First recorded in 1885–90; par1 + focal

Words nearby parfocal

parev, pareve, par excellence, parfait, parfleche, parfocal, par for the course, parfum, pargasite, parget, pargeting
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020