gnomon
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.
The pole serves as a gnomon, the part of a sundial that casts a shadow to denote time.
From Washington Post
A sundial uses a shadow cast by a thin rod called a gnomon on to a flat surface etched with different times.
From BBC
A gnomon is the perpendicular part of a sundial, the part that casts a shadow.
From Washington Post
Pytheas of Marseilles—who lived in the time of Alexander the Great, about 330 B.C.—measured the latitude of Marseilles by means of a gnomon, and found it to be about 42° 56′½.
From Project Gutenberg
Then came the necessity of finding out about the inclination or obliquity of the ecliptic, and this is where the gnomon was employed.
From Project Gutenberg
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.