OSI

  1. (initialism) .  (computing) Open Systems Interconnection.
  2. (initialism) .  (aviation, travel industry) Other Supplementary Information. A message sent to an airline by an agent, in a standardised format, advising relevant information such as being a VIP, language difficulty, or passport information.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.