prime vertical
Britishnoun
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.
As the sun, in North latitudes, passes the prime vertical before sunrise in the winter, the following remarks do not hold for that season.
From Lectures in Navigation by Draper, Ernest Gallaudet
If your A.M. sight was taken when the sun was on or near the prime vertical, a change in latitude at noon will make no change in longitude.
From Lectures in Navigation by Draper, Ernest Gallaudet
The sun might be observed for this purpose during the summer months, at moments when calculation showed that he should be due east or west, or crossing what is technically the prime vertical.
From The Contemporary Review, Volume 36, September 1879 by Various
Take the morning sight for longitude when the sun is on or as near as possible to the prime vertical.
From Lectures in Navigation by Draper, Ernest Gallaudet
The prime vertical circle passes through the east and west points of the horizon.
From Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work by Warren, Henry White
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
