turn indicator

noun

, Aeronautics.

1. a flight instrument that indicates the angular rate of turn of an aircraft about its vertical axis.

Word History and Origins

Origin of turn indicator¹

First recorded in 1915–20

Example Sentences

But in a heavy fog, or if he cant see over his cockpit, the horizon doesnt exist, and a bank and turn indicator is his instrument.

From Project Gutenberg

And if we were supposed to fly in anything but clear weather, we'd need a bank and turn indicator and an artificial horizon.

From Project Gutenberg

Bell kept his eyes on the bank and turn indicator, glancing now and then at the altimeter.

From Project Gutenberg