PARFOCAL


Meaning of PARFOCAL in English

/pahr foh"keuhl/ , adj. Optics.

of or pertaining to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.

[ 1885-90; PAR 1 + FOCAL ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .