synoptic chart

noun

1. a chart showing the distribution of meteorological conditions over a wide region at a given moment.

Word History and Origins

Origin of synoptic chart¹

First recorded in 1885–90

Example Sentences

These observations were sufficiently numerous to form a synoptic chart at a considerable height above Europe for comparison with the usual chart drawn from the surface observations.

From Project Gutenberg

Figure 28.—Hachette's synoptic chart of elementary mechanisms, 1808.

From Project Gutenberg