parfocal

play
adjective par·fo·cal \ˌpär-ˈfō-kəl\

Definition of parfocal

  1. :  being or having lenses or lens sets (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


First Known Use: circa 1886


Medical Dictionary

parfocal

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

Medical Definition of parfocal

  1. :  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

\-fō-ˈkal-ət-ē\play noun plural

parfocalities


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