Try Our Apps


Is irregardless a word?

geometrical optics

the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.
Origin of geometrical optics
1830-40 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source
Examples from the Web for geometrical optics
Historical Examples
  • The various elements are carefully designed according to the laws of geometrical optics.

    Artificial Light M. Luckiesh
  • During his school days he had paid some attention to geometrical optics, and had constructed a microscope and telescope.

Word of the Day

Difficulty index for geometrical optics

Few English speakers likely know this word

Word Value for geometrical

Scrabble Words With Friends

Nearby words for geometrical optics