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principal point

American  

noun

Optics.
  1. the point where a principal plane intersects the axis.


Etymology

Origin of principal point

First recorded in 1695–1705

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Rather than seeing records as marketing adjuncts to concert tours, he showed that recordings could be the principal point of contact — in his case, the only point — between musicians and their fans.

From Los Angeles Times Apr. 9, 2024

His principal point is that the power of the real-estate state flows from the dynamic between development and the profession of city planning.

From The New Yorker Nov. 20, 2019

Starr takes us on a tour of Whitewater, and though it once was the principal point of his inquiry, it now is largely beside the point.

From Washington Post Sep. 20, 2018

“A hit resulting in contact with an opponent’s head where the head is targeted and the principal point of contact is not permitted.”

From New York Times Apr. 22, 2012

One subject, among others, appeared the principal point of discussion between them, and drew the attention of Albert.

From The Banished A Swabian Historical Tale. In Three Volumes. by Hauff, Wilhelm

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