alphanumeric
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- a of or pertaining to alphanumeric characters
- Computerized alphanumeric systems are already in operation in air-traffic control centers in Atlanta, Jacksonville and New York, electronically printing the flight number .
- Such "alphanumeric" displays are not entirely new.
- Called an "alphanumeric data block," it identifies the airplane and gives its altitude, which the transponder gets automatically from the plane's altimeter and sends along to a .