parfocal
/pɑːˈfəʊkl/Optics
adjective
Designating or relating to two or more lenses (especially in a microscope) the focal points of which lie in the same plane, so that they may be interchanged without the need to adjust the focus.
Origin
Late 19th century. From par + focal.
- passenger cell
- passenger coach
- passenger door
- passenger-kilometer
- passenger-kilometre
- passengerless
- passenger mile
- passenger mileage
- passenger pigeon
- passenger seat
- passenger side
- passenger train
- passepartout
- passepartouted
- passepartout frame
- passepied
- passe-pierre
- passer
- passer-by
- passerelle
- Passeres
- passeriform
- passerine
- passer-through
- passe-temps