Definition
A preplanned instrument flight rule (IFR) air traffic control arrival procedure published for pilot use in graphic and textual form. STARs provide transition from the en route structure to a fix or point from which an approach to the destination airport can be made.
Plain English
A published, named route that takes you from the en route part of your flight down toward the airport, ending at a point where you can begin your approach to land.
Context Anchor
Pilots encounter Standard Terminal Arrivals in IFR flight planning, arrival charts, and air traffic control clearances when flying into busier airport areas.
Derivation
Standard means published and used by everyone the same way. Terminal refers to the airspace surrounding an airport (from Latin terminus, meaning end or boundary) -- the end of the cruise portion of the flight. Arrival simply means the inbound segment toward the airport.
Why Pilots Care
It reduces pilot workload, ensures traffic separation, and keeps arrivals predictable at busy airports.
Analogy
It is like a planned highway route into a busy city: instead of every driver making up a different way in, traffic follows known paths that keep movement orderly.
Intuition Check
Do not read terminal as the passenger building. Here, terminal means the controlled airport area near the end of the flight. Do not read standard as casual or optional. Here, standard means a published, expected procedure used by pilots and air traffic control.
Example Sentence 1
Approaching the Los Angeles area, the crew was cleared to fly the SADDE SIX arrival, a STAR that sequenced them from the en route structure toward the final approach.
Example Sentence 2
ATC issued the Standard Terminal Arrival clearance with a crossing restriction at the initial waypoint.