principal plane

noun

Medical Definition of principal plane

: either of the two planes perpendicular to the principal axis and passing through one of the two principal points of an optical system

Learn More About principal plane

Dictionary Entries Near principal plane

principal axis

principal plane

principal point

See More Nearby Entries 

Cite this Entry

“Principal plane.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/principal%20plane. Accessed 25 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!