parfocal


par·fo·cal

adjective \ˌpär-ˈfō-kəl\

Definition of PARFOCAL

:  being or having lenses or lens sets (as eyepieces) with the corresponding focal points all in the same plane
par·fo·cal·i·ty \ˌpär-fō-ˈka-lə-tē\ noun
par·fo·cal·ize \ˌpär-ˈfō-kə-ˌlīz\ transitive verb

Origin of PARFOCAL

Latin par equal + English focal
First Known Use: circa 1886

Rhymes with PARFOCAL

par·fo·cal

adjective \(ˈ)pär-ˈfō-kəl\   (Medical Dictionary)

Medical Definition of PARFOCAL

: having corresponding focal points all in the same plane : having sets of objectives or eyepieces so mounted that they may be interchanged without varying the focus of the instrument (as a microscope) with which they are used
par·fo·cal·i·ty \-fō-ˈkal-ət-ē\ noun, plural par·fo·cal·i·ties

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