liquid compass

noun

, Navigation.

1. wet compass.

Word History and Origins

Origin of liquid compass¹

First recorded in 1860–65

Example Sentences

A luminous liquid compass (Short & Mason) was found very useful on long reconnaissance rides.

From Project Gutenberg

In 1888 the form of liquid compass (fig. 5) now solely used in torpedo boats and torpedo boat destroyers was introduced.

From Project Gutenberg