/duy op"triks/ , n. ( used with a sing. v. )
the branch of geometrical optics dealing with the formation of images by lenses.
[ 1635-45; SEE DIOPTRIC, -ICS ]
/duy op"triks/ , n. ( used with a sing. v. )
the branch of geometrical optics dealing with the formation of images by lenses.
[ 1635-45; SEE DIOPTRIC, -ICS ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012