parfocal

adjective par·fo·cal \ ˌpär-ˈfō-kəl \

Definition of parfocal

:being or having lenses or lens sets (such as eyepieces) with the corresponding focal points all in the same plane

parfocality

play \ˌpär-fō-ˈka-lə-tē\ noun

parfocalize

play \ˌpär-ˈfō-kə-ˌlīz\ transitive verb

Origin and Etymology of parfocal

Latin par equal + English focal


Medical Dictionary

parfocal

adjective par·fo·cal \ (ˈ)pär-ˈfō-kəl \

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

parfocality

play \-fō-ˈkal-ət-ē\ noun plural -ties

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