Artificial Horizon Definition

noun

An instrument that indicates the pitching and banking of an aircraft by displaying the movement of a representation of the aircraft in relation to a line representing the horizon.

American Heritage

A gyroscopic instrument on an aircraft for indicating the true horizon and the position of the craft with reference to it; flight indicator.

Webster's New World

(aviation) An instrument that displays the pitch and roll of an aircraft in flight by comparing its attitude to a gyroscopically-maintained indication of the flat horizon line.

Wiktionary

Synonyms: