Dictionary.com
definitions

airside

[air-sahyd]

noun

the part of an airport used by aircraft for loading and unloading and takeoffs and landings.
the area beyond security checks and passport and customs control in an airport terminal.

Nearby words

  1. airshed,
  2. airship,
  3. airshow,
  4. airsick,
  5. airsickness,
  6. airspace,
  7. airspeed,
  8. airspeed indicator,
  9. airstream,
  10. airstrip

Origin of airside

First recorded in 1955–60; air1 + side1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for airside

airside

noun

the part of an airport nearest the aircraft, the boundary of which is the security check, customs, passport control, etcCompare landside (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012