Definition
A device that produces a steady, repeating beat at a set tempo, used as a reference for keeping a constant rhythm or pace.
Plain English
A small machine or app that ticks at a regular speed, like a clock you can adjust faster or slower.
Context Anchor
In the Aviation Instructor’s Handbook, this word is most likely encountered in learning-theory discussions about practice, timing, and building a repeatable skill.
Derivation
From the Greek 'metron' (measure) and 'nomos' (rule or law). Literally, 'a measurer of rule' — something that measures and enforces a steady pace. Knowing this helps the reader see why it's used as an example of consistent, repeating reference.
Intuition Check
A metronome is not an aircraft instrument. In this context, it is a simple timing tool used as an example of steady, repeated practice.
Example Sentence 1
The instructor compared the rhythm of a good instrument scan to a metronome — steady, even, and predictable.
Example Sentence 2
By thinking of the lesson flow like a metronome, the CFI kept each maneuver demonstration at the same measured pace.