adj \(ˈ)pär-ˈfō-kəl\

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

Seen & Heard

What made you want to look up parfocal? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More