gnomonic

[ noh-mon-ik ]

adjective

1. of or relating to a gnomon or to a sundial.
2. of or relating to the measurement of time by a gnomon or a sundial.
3. gnomic ².
4. of, relating to, or noting a map projection in which all great circles are depicted as straight lines:

   a gnomonic chart.

Word History and Origins

Origin of gnomonic¹

1595–1605; < Latin gnōmonicus “of, belonging to a gnomon” < Greek gnōmonikós. See gnomon, -ic

Example Sentences

A modified or composite course can readily be laid out on a gnomonic chart.

From Project Gutenberg

Another kind of projection in common use is the “gnomonic projection” (fig. 12).

From Project Gutenberg

Gnomonic and conical projections are also used for the polar charts, differing little from the foregoing for moderate areas.

From Project Gutenberg

The distortion, however, is necessarily enormous when the celestial sphere is presented in only six gnomonic maps.

From Project Gutenberg