'CSIS' definitions:

Definition of 'CSIS'

From: WordNet
noun
Canada's main foreign intelligence agency that gathers and analyzes information to provide security intelligence for the Canadian government [syn: Canadian Security Intelligence Service, CSIS]

Acronyms for 'CSIS'

From: V.E.R.A.
  • Central Schengen Information Systen (SIS, Europe, Strasbourg)